WO2007049744A1 - Information recording medium, information recording device and method, and computer program - Google Patents

Information recording medium, information recording device and method, and computer program Download PDF

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Publication number
WO2007049744A1
WO2007049744A1 PCT/JP2006/321498 JP2006321498W WO2007049744A1 WO 2007049744 A1 WO2007049744 A1 WO 2007049744A1 JP 2006321498 W JP2006321498 W JP 2006321498W WO 2007049744 A1 WO2007049744 A1 WO 2007049744A1
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WO
WIPO (PCT)
Prior art keywords
recording
information
area
recording area
recorded
Prior art date
Application number
PCT/JP2006/321498
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuo Kuroda
Tsuyoshi Hasebe
Takeshi Koda
Eisaku Kawano
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Publication of WO2007049744A1 publication Critical patent/WO2007049744A1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1238—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc track, i.e. the entire a spirally or concentrically arranged path on which the recording marks are located
    • G11B2020/1239—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc track, i.e. the entire a spirally or concentrically arranged path on which the recording marks are located the track being a pregroove, e.g. the wobbled track of a recordable optical disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1267—Address data
    • G11B2020/1269—Absolute time in pregroove [ATIP] information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1267—Address data
    • G11B2020/1274—Address data stored in pre-pits, i.e. in embossed pits, ROM marks or prepits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24082—Meandering

Definitions

  • Information recording medium information recording apparatus and method, and computer program
  • the present invention relates to an information recording medium such as an optical disc that can be recorded and reproduced by irradiating laser light such as a DVD (Digital Versatile Disc), a BD (Blu-ray Disc), and a CD (Compact Disc).
  • the present invention relates to an information recording apparatus and method for the information recording medium, and a technical field of a computer program. Background art
  • DVD-Video content that has been recorded in advance on a recordable information recording medium such as a DVD—RZRW and sold and encrypted via a network (hereinafter referred to as “A distribution system that distributes “encrypted content”) is disclosed.
  • This distribution system was applied to information-recording media with the same physical structure as recordable information recording media such as conventional DVD-RZRW and to read-only media such as conventional DVD-ROM. Encryption information is pre-recorded in a control area such as the control data zone before sales.
  • Patent Document 3 discloses a technique related to the data structure of the file system in this hybrid optical disc. Further, Patent Document 3 discloses a specific example of a rewritable information recording medium such as a hybrid CD-RZW using a file system such as UDF (Univer sal Disk Format). Patent Document 4 discloses a technique relating to the data structure of a plurality of file systems in the multi-session method.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2001-307427
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-357001
  • Patent Document 3 Japanese Patent Laid-Open No. 2003-272309
  • Patent Document 4 JP-A-7-182218
  • Non-Patent Document 1 “DVD Content Protection” Toshiba Review Vol.58, No6 (2003)
  • Patent Document 1 the recording area of the same physical structure as that of a conventional recording information recording medium in which no special contrivance is made with respect to the recording information recording medium.
  • DVD-ROM read-only DVD
  • illegal recordings where encrypted information pre-recorded and protected on DVD discs that are usually sold on the market are also copied to the encrypted information by some means.
  • Recordable DVD disc a recordable DVD disc on which encryption key information is recorded under a valid encryption system (hereinafter referred to as a“ valid recordable DVD disc ”as appropriate).
  • a“ valid recordable DVD disc ”as appropriate There is a technical problem that cannot be distinguished.
  • Patent Document 3 is directed to a hybrid type information recording medium including a read-only area and a rewritable recording area, it is considered that initialization processing is performed in the recording area.
  • the multi-partition data structure is adopted as the data structure.
  • the directory structure in the playback-only area is recorded. Therefore, for example, even if the directory structure is not additionally recorded in another recording area, a technical problem of illegal access occurs.
  • Patent Document 4 is a multi-session method, a plurality of pieces of recording information (recording data) respectively corresponding to a plurality of sessions are recorded on one information recording medium, for example, a file system. Each time a new session is created, a technical problem arises that it must be copied (duplicated) or changed redundantly.
  • the present invention has been made in view of, for example, the above-mentioned problems, and the confidentiality of encryption information for encrypting content can be increased over an information recording medium of an abnormal type. It is an object of the present invention to provide an information recording medium, an information recording apparatus and method, and a computer program that causes a computer to function as such an information recording apparatus.
  • the information recording medium of the present invention has control information that is at least one of clock information (Wobble) and address information (LPP) for recording or reproducing the recorded information.
  • control information that is at least one of clock information (Wobble) and address information (LPP) for recording or reproducing the recorded information.
  • One or a plurality of second recording areas pre-formatted first recording area (no wobble section)) and one or more second recording areas (positioned at least on the inner circumference side of the first recording area and pre-formatted with the control information)
  • part or all of the management information (File System) for managing the recording position or the reproduction position of the recording information (FSla) can be arranged or recorded in the second recording area.
  • the information recording medium of the present invention in the first recording area, for example, clock information based on wobbling of a recording track, and land information, for example, for recording or reproducing the recording information.
  • Control information that is at least one of address information such as pre-pit (Land Pre Pit) is not preformatted.
  • the control information is preformatted in the second recording area located at least on the inner circumference side of the first recording area.
  • the "inner circumference side" according to the present invention refers to other recording areas based on a specific recording area. Recording area force It may mean that it is located inside that particular recording area.
  • the “outer peripheral side” may mean that the other recording area is located outside the specific recording area on the basis of the specific recording area. Good.
  • part or all of management information such as a file system for managing the recording position or the reproduction position of the recording information can be arranged.
  • the UDF bridge including IS09660 in which the recording start position is fixed Management information such as file systems based on the standard cannot be recorded or rewritten. For this reason, there arises a technical problem that the data amount and the recording position of recording information such as contents are fixed.
  • part or all of the management information can be arranged in the second recording area in which the control information is preformatted. Therefore, for example, the user can freely arrange the recording information in the second recording area, and further, part or all of the management information can be recorded in an extended manner later in time.
  • the management information or the recording information can be freely arranged, so that it can be further expanded and recorded later in time as in the finalizing process, for example, by the recording process by the user.
  • recording information such as DVD content
  • management information such as a file system is stored in the information recording device. Since additional recording and rewriting recording are performed, part or all of the management information can be expanded and recorded in the second recording area.
  • the type of management information such as a file system based on the UDF bridge standard, or the form of a recording procedure for recording information such as content distributed electronically, for example It is possible to provide an information recording medium that more appropriately corresponds to various recording methods such as the above.
  • a part or all of the management information in the second recording area, can be arranged with a physical address power of 30000M hexadecimal).
  • the conventional reproducing device receives part or all of the management information at the position of the recording area substantially the same as the conventional one through an optical pickup. It can be read accurately.
  • the other part of the management information (FS lb) in the other second recording area (wobbled section) located on the outer peripheral side of the first recording area, the other part of the management information (FS lb) can be recorded (by the user) and is located on the inner circumference side of the first recording area.
  • the part of the management information (FSla) arranged in one second recording area is the It contains position information (address indicating the recording start position) related to the position where the other part of the management information is recorded.
  • the other part of the management information in the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded later in time by the user, for example.
  • part of the management information that can be placed in one second recording area located on the inner circumference side of the first recording area is the position where the other part of the management information is recorded in the other second recording area.
  • position information such as an address indicating a recording start position is included.
  • the other part of the management information in the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded later in time by the user, for example. It is.
  • part of the management information that can be placed in one second recording area located on the inner circumference side of the first recording area is recorded in the other second recording area by the other part of the management information
  • Position information such as an address indicating a recording start position relating to the position is included.
  • management information or recording information in an expanded manner later in time, for example, by a recording process by a user, for example, in the finalizing process.
  • recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device
  • the information recording is performed.
  • management information such as a file system is additionally recorded and rewritten. Therefore, for example, a part of management information such as a file system based on the UDF bridge standard can be expanded and recorded in one second recording area.
  • the other part of the management information can be expanded and recorded in another second recording area based on the position information included in a part of the management information.
  • the part of the management information may include UDF or information based on the ISO9660 standard.
  • the management information is pre-recorded in one second recording area more appropriately and more efficiently based on, for example, the type of management information such as a file system. It is possible.
  • the other part of the management information (FS1 b) is recorded as the boundary position force between the first recording area and the other second recording area (section with wobble) by a predetermined length.
  • the other part of the management information is recorded from a position separated by a predetermined length from the boundary position between the first recording area and the other second recording area. Therefore, a general information recording apparatus acquires clock information and address information in a second recording area having a predetermined length in which control information is preformatted, and synchronizes with the recording clock held by the information recording apparatus. It is possible. As a result, the information recording apparatus can record the other part of the management information in the second recording area with higher accuracy.
  • the other part of the management information that can be recorded in the other second recording area located on the outer peripheral side of the first recording area.
  • (FSlb) is (i) information on the logical hierarchy (directory structure, file structure, anchor point) when recording or reproducing the recording information, or (ii) information on the attribute (file size) of the recording information. Including.
  • the other part of the management information is more appropriately and more efficiently stored in the other second recording. It is possible to record in the area.
  • part or all of the management information can be arranged across the second recording area and the first recording area.
  • the management information can be recorded continuously in one piece in the recording area.
  • predetermined data (FS, dummy data, encrypted information, and other information) is further recorded in the first recording area (no wobble section). Pre-recorded.
  • the first recording area force is included in the user data area, for example, and predetermined data such as a disc key (encrypted information) of the DVD content is pre-recorded, for example.
  • a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a first recording area in which predetermined data such as a disc key is pre-recorded. Therefore, a general information recording / reproducing apparatus is substantially the same as the reproduction-only information recording medium such as a DVD-ROM that is not distinguished from the reproduction-only information recording medium. It is possible to execute special programs such as applications that support playback-only information recording media.
  • the “special program” according to the present invention.
  • a predetermined program pre-recorded in the first recording area such as a program for reproducing recorded information such as a DVD content while decrypting it.
  • This special program may be pre-recorded in the first recording area, or may be recorded in a recording area other than the first recording area.
  • a judgment area for judging whether or not power to permit playback of recorded information is first accessed. Area
  • the conventional player since the wobble is not pre-formatted in the first recording area, the conventional player (general information recording / reproducing device) cannot detect the wobble. Therefore, the general information recording / reproducing device reproduces at least the judgment area.
  • the information recording medium of the present invention cannot be distinguished from a general reproduction-only information recording medium such as a DVD-ROM.
  • the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
  • the following effects can be obtained. That is, a conventional player (general information recording / reproducing device) cannot detect a wobble signal as clock information in, for example, a first recording area in which title information of a DVD content is recorded. Therefore, a general information recording / reproducing apparatus is, for example, In almost the same way as a reproduction-only information recording medium such as a DVD-ROM that is not distinguished from the reproduction-only information recording medium, the reproduction resume processing (resume operation: Resume Operation: ) Can be performed.
  • the “reproduction resume process (resume process)” is an information reproducing apparatus such as a DVD player, for example, during the reproduction process of the information recording medium.
  • the information recording medium is taken out and the same information recording medium is inserted again, it means a process of replaying the recorded information such as the content being reproduced from the middle of the reproduction again.
  • this information reproducing apparatus firstly (1) an address indicating the reproduction position of recorded information that was reproduced at the moment when the information recording medium was removed during reproduction; (2) Recorded information during playback, such as title information of recorded information, or (3) a data string indicating a predetermined position existing at the beginning of the user data area. Is stored in storage means such as an internal memory. Next, when the information recording medium is inserted again, the information reproducing apparatus records, for example, specific information such as title information, and (i) a wobble signal is detected as clock information. Whether or not (ii) the ability to reproduce the specific information.
  • the information reproducing apparatus (i) when a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) when specific information such as title information can be reproduced, Playback can be resumed from the vicinity of the address indicating the playback position of the recorded information that is stored.
  • the predetermined data may be configured to be encryption key information for encrypting recorded information.
  • the predetermined data may be configured to be pre-recorded at least in the user data area.
  • the predetermined data when the predetermined data is included in the first recording area power user data area, various kinds of information such as encryption information used for encryption for PC use are stored. For example, it is possible to pre-record in parallel with recording information such as video content. As a result, the information recording medium can be used for various various purposes in accordance with the recording information and the recording method.
  • the other part (FSlb ) Can be recorded (by the user), and the other part (FSlb) of the management information includes pointer position information indicating the position of the predetermined data (dummy data, etc.) or address information. Do it.
  • a part of the management information may be configured to include pointer position information indicating a position of the predetermined data (dummy data or the like).
  • a part or all of the management information (File System) (FSla) is based on the UDF standard when the management information is based on the UDF bridge standard.
  • FSla management information
  • information based on the ISO9660 standard is included.
  • the management information can be pre-recorded in the second recording area more appropriately and more efficiently. is there.
  • a plurality of the first recording areas are provided.
  • the information recording device described later identifies that there are a plurality of first recording areas. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the first recording area.
  • the information recording medium includes a plurality of the first recording areas (no wobbled sections), and at least one of the first recording areas (no wobbled sections) is the information recording medium. It is included in the attribute management area (CDZ) for recording attribute management information for managing attributes (type identification information).
  • CDZ attribute management area
  • the information recording apparatus described later identifies that the first recording area exists in the attribute management area such as the control data zone. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the first recording area.
  • the information recording medium includes a plurality of the first recording areas (sections without wobbles) and a plurality of the second recording areas (sections with wobbles), and has a first predetermined length.
  • the first recording area (interval without wobble) and the second recording area (interval with wobble) having a second predetermined length are alternately arranged.
  • the first recording area having the first predetermined length and the second recording area having the second predetermined length are alternately arranged by the information recording apparatus described later. Identified. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which a part or all of the management information is pre-recorded in the first recording area.
  • the information recording apparatus of the present invention will be described below.
  • an information recording apparatus of the present invention is an information recording apparatus that records the recording information on the above-described information recording medium of the present invention (including various aspects).
  • Recording means for recording the recording information and (i) in the first recording area (no wobble section), predetermined data (FS, dummy data, encrypted information, and other information) (Ii) In the recording area, the first recording area of the first predetermined length (the section without wobble) and the second recording area of the second predetermined length (the section with wobble) )
  • a determination means for determining whether or not the alternating arrangement is performed, and when the result of the determination is that the pre-recording is performed or the alternating arrangement is performed Comprises a control means for controlling the recording means so as to record a part or all of the management information (FSla) simultaneously with the recording of the recording information or in succession.
  • FSla management information
  • the determination means determines whether or not the pre-recording of predetermined data such as dummy data or encryption information is performed in the first recording area. .
  • the determination means in the recording area, the first recording area of the first predetermined length and the second recording area of the second predetermined length are alternately arranged! /, It is determined whether or not.
  • the recording means records and records information under the control of the control means. At the same time or in succession, the other part of the management information is recorded.
  • the information recording apparatus As a result of the above, it is possible to record the management information in an expanded manner later in time by the recording process by the information recording apparatus. That is, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by the information recording device, the other part of management information such as a file system is legally transferred to the information recording device. It is possible to quickly and accurately perform additional recording or rewritable recording on an information recording medium determined as a recording type information recording medium.
  • the information recording apparatus of the present invention can also adopt various aspects.
  • the information recording method of the present invention provides the above-described information of the present invention.
  • An information recording method in an information recording apparatus comprising a recording means for recording the recording information on a recording medium (including various aspects), wherein (i) in the first recording area (no wobble section), Pre-recording of predetermined data (FS, dummy data, encrypted information, and other information), or (ii) the first recording area of the first predetermined length in the recording area (A section without wobble) and a determination step for determining whether or not power is alternately arranged between the second predetermined length of the second recording area (section with wobble), and
  • a determination step for determining whether or not power is alternately arranged between the second predetermined length of the second recording area (section with wobble)
  • Control step of controlling the recording means to record FSla With
  • the information recording method of the present invention can also adopt various aspects.
  • a recording control computer program is a recording program for controlling a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof).
  • a computer program for control which causes the computer to function as at least part of the recording unit, the determination unit, and the control unit.
  • the computer program of the present invention if the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk that stores the computer program and then executed by the computer, Alternatively, if the computer program is downloaded to a computer via communication means and then executed, the above-described information recording apparatus of the present invention can be realized relatively easily.
  • each computer program of the present invention can also adopt various aspects.
  • a computer program product in a computer-readable medium can be executed by a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof).
  • the program instruction is clearly embodied, and the computer functions as at least a part of the recording unit, the determination unit, and the control unit.
  • the computer program product of the present invention if the computer program product is read into a computer from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product, or
  • a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product
  • the computer program product which is a transmission wave
  • the computer program product which is a transmission wave
  • the computer program product may comprise a computer readable code (or computer readable instruction) that functions as the information recording apparatus of the present invention described above.
  • the first recording area and the second recording area are provided.
  • management information or recording information in an expansive manner later in time, for example, in a finalizing process, for example, by a recording process by a user.
  • recording information such as DVD content
  • management information such as a file system is recorded in the information recording device. Since additional recording is rewritten, part or all of the management information can be expanded and recorded in the second recording area.
  • various recording methods such as the type of management information such as a file system based on the UDF bridge standard, or the form of a recording procedure for recording information such as contents distributed electronically, for example
  • a recording unit a determination unit and a process, and a control unit and a process are provided.
  • recorded information such as DVD content is electronically distributed via a network, for example, and is added by the information recording apparatus.
  • the information recording device records part or all of the management information such as the file system on the information recording medium determined as a legal recording type information recording medium quickly and accurately. Or rewrite recording.
  • the computer is caused to function as the information recording apparatus of the present invention described above.
  • FIG. 1 is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to an embodiment of an information recording medium of the present invention, and a radial direction associated with the schematic plan view.
  • FIG. 2 is a schematic conceptual diagram of a recording area structure in a direction.
  • FIG. 2 is a partially enlarged perspective view of a recording surface of an optical disc according to an embodiment of the information recording medium of the present invention.
  • FIG. 3 is a conceptual graph showing the relationship between a recording area of an optical disc according to an embodiment of the information recording medium of the present invention and an address that can specify the position of the recording area.
  • FIG. 4 A schematic diagram and other conceptual diagrams showing clock information and address information necessary for recording obtained in a wobbling force of a groove track in an optical disc according to an embodiment of the information recording medium of the present invention (FIG. ) To Figure 4 (d)).
  • FIG. 5 is a schematic diagram showing the wobble signal obtained by the first recording area force in one example of the physical structure of the first recording area of the optical disc according to the embodiment of the information recording medium of the present invention and in another example.
  • Fig. 5 is a conceptual diagram (Fig. 5 (a) to Fig. 5 (d)).
  • FIG. 6 A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a second description of the present invention.
  • FIG. 5 is a schematic diagram schematically showing an arrangement relationship with a recording area in a section with wobble, which is a specific example of a recording area.
  • FIG. 7 A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention.
  • FIG. 10 is another schematic diagram (No. 1) conceptually showing an arrangement relationship with a recording area of a wobbled section which is a specific example of a recording area.
  • FIG. 8 A file system, which is a specific example of the management information of the present invention, and the first recording area of the present invention.
  • This is a schematic diagram (Part 2).
  • FIG. 9 is a schematic diagram (FIG. 9 (a) and FIG. 9 (b)) conceptually showing one type and another type of recording procedure of the file system which is a specific example of the management information of the present invention.
  • FIG. 10 is a schematic diagram (FIG. 10 (a) and FIG. 10 (b)) schematically showing one and other types of file systems which are specific examples of management information of the present invention.
  • FIG. 11 is a block diagram showing an overall configuration of a distribution system including an information recording device that performs a recording operation and an information distribution device that performs a distribution operation on the information recording medium of the present invention.
  • FIG. 12 is a flowchart showing various processes in the information recording apparatus and information distribution apparatus of the present invention.
  • FIG. 13 is a block diagram showing an overall configuration of an information recording / reproducing apparatus for recording / reproducing an information recording medium of the present invention.
  • FIG. 14 is a flowchart showing recording data recording or reproduction processing by the information recording / reproducing apparatus in the embodiment of the information recording apparatus of the present invention.
  • FIG. 10 is another schematic diagram (part 3) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
  • FIG. 10 is another schematic diagram (part 4) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
  • FIG. 5 is another schematic diagram (part 5) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
  • FIG. 18 shows one and other specific examples in the case where there are a plurality of recording areas in a wobble-free section, which is a specific example of the first recording area of the present invention.
  • symbol number is attached
  • FIG. 19 A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention.
  • FIG. 10 is another schematic diagram (part 6) conceptually showing the arrangement relationship with the recording area of the section with wobble, which is a specific example of the recording area.
  • FIG. 20 is a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention.
  • FIG. 10 is another schematic diagram (part 7) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the recording area.
  • FIG. 1 is a schematic plan view showing the basic structure of an optical disc having a plurality of recording areas according to an embodiment of the information recording medium of the present invention, and the radial direction associated with the schematic plan view.
  • FIG. 2 is a schematic conceptual diagram of a recording area structure in FIG.
  • FIG. 2 is a partially enlarged perspective view on the recording surface of the optical disc according to the embodiment of the information recording medium of the present invention.
  • the optical disc 100 is a recording surface on a disc body having a diameter of about 12 cm as in the case of a DVD.
  • PCA Power calibration area
  • RMA Recording Management Area
  • RMA Control Data Zone Lead-in area 101 with CDZ
  • Data area 102 Data area 102
  • V Lead-out area 103 It is configured with.
  • at least one recording layer is laminated on a transparent substrate (not shown) of the optical disc 100, for example.
  • each recording area of this recording layer for example, tracks 50 such as a groove track and a land track are alternately provided in a spiral shape or a concentric shape with the center hole 1 as the center.
  • ECC Error Correction Code
  • ECC (Error Correction Code) block 51 is a record information management unit capable of error correction of record information.
  • the optical disc according to the present embodiment is a so-called no-briddle type optical disc having both a recording area in a recordable information recording medium and a read-only area (playback-only area) in a read-only information recording medium.
  • the first recording area of the present invention may be provided near the inner periphery of the data area.
  • the optical disc 100 is located below the disc-shaped transparent substrate 106, and thus the dye type or phase change constituting the information recording surface.
  • a recording layer 107 of a mold is laminated, and a reflective layer 108 is further laminated on the lower side.
  • Groove track GT and land track LT alternate on the information recording surface, which is the surface force of the recording layer 107. Is formed.
  • the laser beam LB is irradiated onto the groove track GT through the transparent substrate 106 as shown in FIG. For example, at the time of recording, recording is performed on the recording layer 107 according to the recording data by irradiating the laser beam LB with the recording laser power.
  • the recording data recorded on the recording layer 107 is read by irradiating the laser beam LB with a reproduction laser power weaker than the recording laser power.
  • the groove track GT, land track LT, wobble 109, land pre-pit LPP, etc. will be described in detail later.
  • encryption information such as a title key based on an encryption system such as CSS, and encryption key content encrypted with the encryption key information such as the title key.
  • encryption key information such as a title key is encrypted with encryption key information such as a disk key or a disk key set.
  • the present invention is not particularly limited to an optical disc having such five areas.
  • the lead-in area 101 or the lead-out area 103 may be further subdivided.
  • FIG. 3 is a conceptual graph showing the relationship between the recording area of the optical disc according to the embodiment of the information recording medium of the present invention and the address at which the position of the recording area can be specified.
  • the vertical axis in FIG. 3 indicates address values such as sector numbers and land pre-pit addresses, for example, and the horizontal axis indicates the relative position in the radial direction of the optical disk.
  • address for example, LBN (Logical Block Number), for example, physical sector number (sector number) constituting an ECC block, or land pre-pit address (Land Pre Pit Address) It is constituted by.
  • the recording area of the optical disc 100 is as described above.
  • (I) Power calibration area PCA (Ii) Recording Management Area RMA, (iii) Control Data Zone Lead-in with CDZ A rear 101, (iv) a data area 102, and (v) a lead-out area 103 are provided.
  • Various attribute management information may be recorded in the RMA or CDZ.
  • the attribute management information includes (ii-1) information on recording characteristics such as optimum recording power, (ii-2) attribute information for specifying the type of medium, and (ii 3) various recording areas.
  • Various information for managing the information recording medium such as information for identifying the location of the information.
  • the address power that can uniquely identify the position of the recording area of the optical disc 100 described above for example, when the LBA or physical sector number (sector number) is used, the optical pick-up power As the inner peripheral force moves to the outer peripheral side, the address in the recording area of the optical disc 100 increases, and may be reduced (see the thick solid line in FIG. 3).
  • the address where the position of the recording area can be uniquely specified is, for example, a land pre-pit address
  • the optical pickup of the information recording / reproducing apparatus described later has an inner peripheral force on the outer peripheral side. As you move to, the address in the recording area of the optical disc 100 will decrease, and you may try again!
  • FIG. 4 is a schematic diagram and other conceptual diagrams showing clock information and address information necessary for recording that can be obtained in the wobbling force of the group track in the optical disc according to the embodiment of the information recording medium of the present invention (FIG. 4).
  • the groove track GT is oscillated with a constant amplitude and a spatial frequency. That is, the group track GT is wobbling, and the period of the wobble 109 is set to a predetermined value.
  • the preformat address information may be recorded in advance by modulating the wobble 109 of the groove track GT by a predetermined modulation method such as frequency modulation or phase modulation.
  • address pits called land prepits LPP indicating preformat address information are formed on the land track LT.
  • the two types of addressing described above ie, wobble 109 and ATIP or land pre-pit LPP, obtain information necessary for recording data such as disk rotation control during recording, recording clock generation, and recording address. Can do. More specifically, for example, in order for an information recording device such as a disk drive to write in the data area, for example, the writing is performed in consideration of the recording parameters such as the optimum recording power of the laser light and the recording strategy. The recording clock and recording address used for the recording are required.
  • FIG. 5 shows one example of the physical structure of the first recording area of the optical disc according to the embodiment of the information recording medium of the present invention and the wobble signal obtained in the first recording area force in another specific example. It is a schematic diagram and other conceptual diagrams (Fig. 5 (a) to Fig. 5 (d)).
  • the first wobble signal WB1 as shown in FIG. 5 (a) is obtained from the first recording area.
  • a recording area may be configured. More specifically, with the direction of the recording track as a reference, the amplitude of the wobble is decreased and AM (Amplitude Modulation) in front of the first recording area. On the other hand, after the first recording area, the amplitude of the wobble is increased to AM. In particular, the change when the amplitude begins to decrease and when it begins to increase may be made gradually. Since the response is smooth, the Wobble detection circuit converges faster. More specifically, the comparator in the information recording / reproducing apparatus described later cannot detect the wobble signal from the bandpass filter.
  • the first wobble signal WB2 as shown in FIG. 5 (b) is obtained from the first recording area.
  • a recording area may be configured. More specifically, in all areas of the first recording area, It may be configured such that the wobble is almost or completely eliminated and the wobble signal WB2 is not obtained. However, more advanced control is required in the manufacturing process.
  • the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter, as in the above specific example.
  • the first wobble signal WB3 as shown in FIG. 5 (c) is obtained from the first recording area.
  • a recording area may be configured.
  • the wobble frequency may be modulated from FM ⁇ to ⁇ and FM (Frequency Modulation), for example.
  • FM Frequency Modulation
  • the frequency may be increased to 2 times, 5 times, etc., or may be reduced to 1/2 times, 1Z5 times, etc.
  • the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter in the same way as the above specific example.
  • the first wobble signal WB4 as shown in FIG. 5 (d) is obtained from the first recording area.
  • a recording area may be configured.
  • At least one of the wobble frequency, amplitude and phase may be modulated.
  • the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the band pass filter, as in the above specific example.
  • a recording track such as a groove track itself is not formed in advance in the first recording area. Also good.
  • the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter in the same way as the above specific example.
  • FIG. 6 shows a file system that is a specific example of the management information of the present invention, a recording area of a wobble-free section that is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • 2 is a schematic diagram conceptually showing an arrangement relationship with a recording area in a wobbled section as a specific example of two recording areas.
  • the information recording medium of the present invention has a first wobbled section, a non-wobbled section, and a second wobble from the inner peripheral side to the outer peripheral side of the recording area. It is configured with sections.
  • the file system FSla which is a specific example of the management information of the present invention, can be arranged in the outer peripheral area in the first wobbled section.
  • the “outer peripheral area” in the present embodiment means a recording area that exists near the outside in the target recording area.
  • the starting point of the recording area where this file system FS la can be placed is, for example, position information where the physical sector number is “30000h”, or position information where the LSN (Logical Sector Number) force is “0”, for example. May be specified.
  • the radius position of the starting point of the wobble-free region may be “24 (mm)”, for example. In this case, the starting point of FS la is at least less than 24 mm.
  • this file system FSla cannot be placed in a wobbled section, for example, if it is pre-recorded in a section without wobble, the file system based on the UDF bridge standard including IS O9660 where the recording start position is fixed Since additional recording or rewriting recording cannot be performed, a technical problem arises that the data amount and recording position of recording information such as contents are fixed.
  • the file system FSla can be arranged in the second recording area in which control information such as wobble is preformatted. Therefore, for example, in a section with wobble by the user, the file system FSla Can be expanded.
  • the file system FSla or the recording information can be recorded in an extended manner later in time, for example, in the finalizing process, for example, by the recording process by the user.
  • recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device
  • management information such as a file system is stored in the information recording device. Since additional recording and rewriting recording are performed, the file system FS la can be expanded and recorded in a wobbled section.
  • the type of management information such as a file system, or the form of a recording procedure for recording information such as content distributed electronically, for example It is feasible to respond more appropriately to various recording methods.
  • FIG. 7 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • 2 is another schematic diagram (part 1) conceptually showing the arrangement relationship between the recording area of the wobbled section as a specific example of the two recording areas.
  • symbol is attached
  • predetermined data including, for example, encryption key information such as a disk key, etc. from the start point of the wobbleless section is stored. Pre-recorded in advance.
  • a general information recording / reproducing apparatus for example, is pre-recorded with predetermined data such as a disc key, so that the clock is not recorded in the recording area of the section without wobble. A wobble signal cannot be detected as information. Therefore, general information
  • the recording / reproducing apparatus is not distinguished from a reproduction-only information recording medium such as a DVD-ROM, for example, and generally similar to the reproduction-only information recording medium. It is possible to execute the above-mentioned special program such as an application corresponding to. This special program may be pre-recorded in the recording area of the non-wobbled section and recorded in the recording area other than the non-wobbled section! Make sure it is recorded.
  • a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a recording area in a no-wobble section, so it is pre-recorded in a recording area in a no-wobble section. It is impossible to rewrite predetermined data such as encryption key information. Therefore, it is possible to realize copyright protection of the information recording medium.
  • the wobble signal can be detected as the clock information described above, so that general recording processing can be performed.
  • a determination area for determining whether or not power to permit playback of recorded information is first accessed. If the area is included in the recording area of the wobble-free section, it is possible to enjoy the following effects. That is, since the wobble is not preformatted in the recording area of the no-wobble section, the conventional player (general information recording / reproducing apparatus) cannot detect the wobble. Therefore, the general information recording / reproducing apparatus has at least the determination area. In the reproduction processing in the above, it is impossible to distinguish between the information recording medium of the present invention and a general information recording medium dedicated to reproduction such as a DVD-ROM. As a result, the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
  • the description of the no-wobble section where the predetermined data is pre-recorded is further included in a user data area where recording information can be recorded by the user, for example.
  • the following effects can be obtained. That is, a conventional player (general information recording / reproducing device) detects, for example, a wobble signal as clock information in a recording area of a section without a wobble where title information of a DVD content is recorded. Can not do it. Therefore, a general information recording / reproducing apparatus does not distinguish from a reproduction-only information recording medium such as a DVD ROM, for example, and generally corresponds to the information-recording medium of the present invention. It is possible to perform the above-mentioned reproduction restart processing (resume operation).
  • the information reproducing apparatus first (1) an address indicating the reproduction position of the recorded information that was reproduced at the moment when the information recording medium was taken out during reproduction; (2) Recorded in the middle of playback such as title information of recorded information, or (3) a data string indicating a predetermined position existing at the beginning of the user data area.
  • Specific information that can specify recording information is stored in a storage means such as an internal memory.
  • the information reproducing apparatus records, for example, specific information such as title information, and (i) a wobble signal is detected as clock information. Whether or not (ii) the ability to reproduce the specific information.
  • the information reproducing apparatus (i) when a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) when specific information such as title information can be reproduced, Playback can be resumed from the vicinity of the address indicating the playback position of the recorded information that is stored.
  • FIG. 8 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • FIG. 2B is another schematic diagram (part 2) conceptually showing an arrangement relationship with a recording area of a wobbled section as a specific example of the two recording areas.
  • the first wobbled section For example, a file system FSla, which is a specific example of the management information of the present invention, can be arranged in the outer peripheral area.
  • the file system FS la may be information that retains its low-scaling nature, such as identification information for identifying the file system.
  • the file system FSla includes position information about the position where the file system FSlb is recorded in the wobbled recording area described later (see the arrow in FIG. 8).
  • the file system FSlb can be recorded later, for example, by the user.
  • the file system FS lb may be information with high expandability, that is, information related to a logical hierarchy when recording information is recorded or reproduced, such as a directory structure, a file structure, or an anchor point.
  • the file system FSla can be recorded in the recording area of the wobbled section located on the inner circumference side of the wobbleless section.
  • the file system FSlb can be expanded and recorded, for example, in the recording area of the wobbled section located outside the wobbled section. ing.
  • the file system or the recorded information can be recorded in an extended manner later in time, for example, by a recording process by the user, for example, in the finalizing process.
  • a recording process by the user, for example, in the finalizing process.
  • management information such as a file system is recorded in the information recording device. Additional recording or rewriting recording is performed. Therefore, for example, the file system FSla based on the UDF bridge standard can be expanded and recorded in the recording area of the first wobbled section. Power! ] Based on the position information contained in the file system FSla, the file system FSlb can be expanded and recorded in the recording area of the second wobbled section.
  • FIG. 9 shows one example of the management information of the present invention.
  • FIG. 9 is a schematic diagram (FIGS. 9A and 9B) conceptually showing one and other types of recording procedures of a file system as a specific example.
  • FIG. 10 is a schematic diagram (FIG. 10 (a) and FIG. 10 (b)) schematically showing one and other types of file systems which are specific examples of the management information of the present invention.
  • one type of file system recording procedure (part 1) is that the entire FS of the file system is recorded in the recording area of the no-wobble section when pre-recording.
  • pre-recording may be performed.
  • the entire file system FS is pre-recorded.
  • One type of file system FS recording procedure is suitable for recording a file system such as UDF (Universal Disk Format) or UDF bridge.
  • the UDF version may be “1.02” or may be “1.5” or “2.0” higher than that.
  • part 2 of the recording procedure of the file system As shown in Fig. 9 (b), as another type (part 2) of the recording procedure of the file system, part of the file system FSlp and recording information are pre-recorded in the recording area of the wobbled section. It may be recorded.
  • the file system FSla based on the UDF bridge standard can be expanded and recorded in the recording area between wobbles located on the inner circumference side in consideration of FSlp.
  • FSlp whether or not to use FSlp can be selected, so the range of applications can be expanded.
  • the file system FS lb can be expanded and recorded, for example, in the recording area of the wobbled section located on the outer peripheral side.
  • Other types of file system recording procedures are suitable for recording file systems such as UDF bridges in addition to UDF, for example.
  • the information recording medium at the time when it exists at the end user's hand may be roughly divided into the following two types of recorded information recording media (for example, optical discs). That is, (i) an information recording medium (so-called blank disc) in which predetermined data is pre-recorded in a recording area (a portion without wobble) of a wobbleless section, for example, when content information is distributed electronically And (ii) For example, in the case of a small amount of publication (that is, in the form of selling an information recording medium in which a limited amount of information is recorded), the recording area of the wobbleless section (without wobble) Part) and a wobbled section recording area (the part with wobble) is an information recording medium such as a recorded disc on which content information is recorded.
  • an information recording medium such as a recorded disc on which content information is recorded.
  • the file name to be recorded and the file size can be specified, for example, Volume Recognition Sequence, UDF & I3 ⁇ 4O9660 volume structure data composed of AVDP, Volume Descriptor Sequence, and the like is pre-recorded in advance in a pre-recorded area, that is, a recording area of a wobbleless section.
  • file names and file sizes can be additionally recorded or rewritten by performing additional recording or rewriting recording, such as File Set Descriptor, Root Directory ICB, or Root Directory file. Can be done.
  • the file name to be recorded and the file size can be specified.
  • Volume Recognition Sequence, AVDP, U DF & I3 ⁇ 4O9660 volume structure data is essentially a data recordable area. 3 ⁇ 4 In the recording area of the section with 1 noble, it is recorded so that additional recording and rewriting recording are possible. Therefore, if this UDF & ISO 9660 volume structure data, which can specify the file name and file size to be recorded, is pre-recorded, the file name and file size can be additionally recorded and rewritten. It will disappear.
  • the file system FS la based on the UDF bridge standard is recorded in the recording area of the wobbled section located on the inner circumference side, for example. Can be recorded in an expanded manner.
  • the file system FS lb Based on the location information included in the file system FSla, the file system FS lb has a wobble located on the outer side, for example. Recording can be performed in an extended recording area.
  • FIG. 11 is a block diagram showing an overall configuration of an information recording apparatus that performs a recording operation on an information recording medium of the present invention and a distribution system that includes an information distribution apparatus that performs a distribution operation. is there. Note that the step numbers in FIG. 11 correspond to the step numbers in FIG. In the distribution system according to the present embodiment, a DAO (Disk At Once) method may be adopted.
  • a DAO disk At Once
  • the distribution system includes (i) an information recording device 200 that performs a recording operation on the optical disc 100, and (ii) an encrypted content in the information recording device 200.
  • an information distribution device 300 such as a web server
  • an external network 400 such as the Internet that enables the information recording device 200 and the information distribution device 300 to exchange information. It is configured with.
  • the optical disc 100 includes the NBCA, the control data zone CDZ, and the data area 102 for recording the encrypted content. More specifically, the media ID is recorded in NBCA by laser cutting. In the control data zone CDZ, encryption information Key 1 such as a disc key is recorded! In the data area 102, the encrypted content distributed by the information distribution apparatus 300 described later is recorded as it is.
  • the information recording device 200 transmits the media ID of the optical disc 100 to the information distribution device 300. In addition, the encrypted content received from the information distribution apparatus 300 is recorded on the optical disc 100.
  • Information distribution device 300 receives the media ID transmitted by information recording device 200. It generates encryption key information Keyl such as a disc key corresponding to the received media ID and encryption key information Key2 such as a title key. Based on the generated encryption key information Key 1 and Key 2, encryption processing such as encryption key is performed on the content.
  • the encrypted content that is, the encrypted content is distributed to the information recording apparatus 200. Since the encrypted content is distributed via the external network 400, encryption corresponding to eavesdropping and tampering such as SSL (Secure Socket Layer) is performed separately from encryption in the encryption network. Also good.
  • SSL Secure Socket Layer
  • the external network 400 includes an information recording device 200 and an information distribution device 300, both of which are connected to a line connection device (not shown) (for example, a hub device, a digital termination connection device (DSU), or an intrusion).
  • a line connection device for example, a hub device, a digital termination connection device (DSU), or an intrusion.
  • DSU digital termination connection device
  • intrusion for example, a router with a firewall application for prevention.
  • FIG. 12 is a flowchart showing various processes in the information recording apparatus and information distribution apparatus of the present invention. Note that the step numbers in FIG. 12 correspond to the step numbers in FIG.
  • step S 101 when the optical disc 100 is loaded, first, a seek operation is performed by the optical pickup 202 under the control of a CPU (Central Processing Unit) 250 of the information recording apparatus described later (step S 101). ). Next, under the control of the CPU 250, it is determined whether or not the optical disc 100 is an optical disc for content distribution (step S102).
  • step S102 when the optical disk 100 is an optical disk for delivering content (step S102: Yes), various information necessary for the recording operation on the optical disk 100 is acquired (step S103). More specifically, the OPC process is performed to determine the optimum recording power and the recording strategy pattern.
  • step S104 it is determined whether or not content has been recorded on the optical disc 100 (step S104).
  • step S104 when content has not been recorded on the optical disc 100 (step S104: No), the optical disc 100 is controlled from the optical disc 100 under the control of the CPU 250, for example, from the NBCA (Narrow Burst Cutting Area).
  • NBCA Narrow Burst Cutting Area
  • a unique media ID is obtained (step S105).
  • the acquired media ID is encrypted based on SSL or the like, and transmitted to the information distribution apparatus 300 such as a server on the network, for example (step S106).
  • step S102 determines whether the content is not an optical disc to be distributed (step S102: No) or if the result of determination in step S104 is optical disc 100, If it is determined that the content has been recorded (step S104: Yes), the optical disc 100 is ejected from the information recording apparatus 200.
  • Information distribution apparatus 300 first receives a media ID encrypted by SSL or the like (step S 201).
  • the information distribution apparatus 300 decrypts the received media ID encrypted by SSL or the like (step S 202).
  • encryption information Keyl such as a disc key corresponding to the decrypted media ID and encryption key information Key2 such as a title key are generated (step)
  • Step S204 the content and file system distributed using the generated encryption key information Key 1 and Key 2 are encrypted by a predetermined encryption system.
  • the encrypted content and file system encrypted based on the encryption system using the generated encryption key information Key 1 and Key 2 are further converted to SSL or the like. And is distributed to the information recording apparatus 200 (step S 205). More specifically, the encrypted content encrypted by SSL or the like and the attribute of the file system, so-called CCI (Copy Control Information), cannot be reproduced during distribution. To do this, it is set to the Never Copy attribute.
  • CCI Copy Control Information
  • the information recording apparatus 200 receives the encrypted content and file system encrypted by SSL or the like distributed by the information distributing apparatus (step S107).
  • the information recording device 200 decrypts the received encrypted content and file system using SSL or the like (step S108).
  • the information recording apparatus 200 records the encrypted content and the file system encrypted by the encrypted key information Keyl and Key2 on the optical disc 100 as they are without decrypting them (Step S109). ). More specifically, the encrypted content and the file system recording encrypted based on a predetermined encryption system are pre-recorded and started from the address of the last recording area of the lead-in area 101, The process ends at the address of the recording area of the pre-recorded lead-out area 103. If the encrypted content and the recording capacity of the file system are not performed up to the address of the prerecorded recording area of the lead-out area 103, the buffer data may be recorded up to this address. .
  • the buffer data may be written and sold in advance, or newly written when the encrypted content is recorded by the information recording device 200. You can do it.
  • the distribution system includes the information recording device 200, the information distribution device, and the like.
  • the media ID is transmitted and received instead of the encryption key information Key 1 and Key 2. Therefore, for example, the confidentiality of the encrypted information Keyl pre-recorded in the encrypted information recording area such as the control data zone can be kept high, that is, a secure state can be achieved. Therefore, it becomes almost or completely impossible to create or manufacture a recordable information recording medium on which an illegal copy of the encryption information Key is made.
  • FIG. 13 is a block diagram showing the overall configuration of the information recording / reproducing apparatus for recording / reproducing the information recording medium of the present invention.
  • the information recording / reproducing apparatus 200 includes an optical pickup 202 that irradiates the optical disc 100 with a reproduction beam and outputs a signal corresponding to the reflected light, and an optical disc 100.
  • a spindle motor 203 that controls rotation and a servo unit 222 are provided.
  • the servo unit 222 is supplied with the first clock signal CK1 and the pit synchronization signal SYNCp.
  • the servo unit 222 executes a spindle servo that controls the rotation of the spindle motor 203 and a focus servo and a tracking servo that are relative position controls of the optical pickup 202 with respect to the optical disc 100 in synchronization with these signals.
  • pit data DP synchronized with the first clock signal CK1 is recorded by the length of the recording mark.
  • the recording mark in this example is a pit, and the track is composed of a pit row.
  • the track has a meandering shape according to the wobble signal WB obtained by modulating the wobble data DW, for example.
  • the wobble signal WB is synchronized with the second clock signal CK2.
  • the optical pickup 202 includes a laser diode that irradiates a reproduction beam and a quadrant detection circuit (not shown).
  • the quadrant detection circuit divides the reflected light of the reproduction beam into four regions 1A, 1B, 1C, and ID shown in FIG. 8, and outputs a signal corresponding to the amount of light in each region.
  • the head amplifier 204 amplifies each output signal of the optical pickup 202, and the divided read signal la corresponding to the region 1A, the divided read signal lb corresponding to the region IB, the divided read signal lc corresponding to the region 1C, and the region The divided read signal Id corresponding to the ID is output.
  • the optical pickup 202 and the head amplifier 204 correspond to the optical pickup means according to the present invention.
  • the sum generation circuit 210 adds the divided read signals la, lb, lc, and Id, and serves as an adder circuit that outputs the sum read signal SRF.
  • the total read signal SRF is a signal indicating the length of the recording mark.
  • the pit data demodulating circuit 211 reproduces the pit data DP based on the total read signal SRF and generates the first clock signal CK1. More specifically, the pit data DP is demodulated using a predetermined table to generate reproduction data. For example, when EFM modulation is adopted as a modulation method, a process of converting 14-bit pit data DP into 8-bit reproduction data is performed. Further, a descrambling process for rearranging the order of the reproduction data in accordance with a predetermined rule is executed, and processed reproduction data is output.
  • the reproduction data obtained in this way is supplied to the pit data correction circuit 212 shown in FIG. 13, where it is subjected to error correction processing, interpolation processing, etc., and is then stored in the nother 213. .
  • the interface 214 sequentially reads the data stored in the buffer 213, converts it into a predetermined output format, and outputs it to an external device. Further, various data are input / output via the interface 214 to / from the above-described line connection device connected to the external network 400, for example.
  • the push-pull signal generation circuit 220 calculates (la + Id) (lb + lc) and generates a push-pull signal.
  • the component (la + ld) corresponds to the regions 1A and 1D on the left side with respect to the reading direction, while the component (lb + lc) corresponds to the regions 1B and 1C on the right side with respect to the reading direction.
  • the push-pull signal is positive with respect to the center of amplitude, and if the playback beam is located at the center of the pit.
  • the value of the shull signal is centered on the amplitude, and if the reproduction beam is biased to the right side with respect to the pit, the push-pull signal becomes negative with respect to the center of amplitude.
  • the relative position of the playback beam and the pit changes according to the meandering of the track, and the value of the push-pull signal indicates the relative position of the playback beam and the pit. That is, the push-pull signal is a signal corresponding to the meandering of the track.
  • the push-pull signal is output to the servo unit 222 via the low-pass filter 221.
  • the servo unit 222 performs tracking control based on the push-pull signal.
  • the push-pull signal is supplied to the band pass filter 223.
  • the pass band of the bandpass filter 223 is set so that the wobble signal WB obtained by, for example, modulating the wobble data DW at the time of recording can also extract the push-pull signal power. Therefore, the band pass filter 223 constitutes the above-described detection means together with the push-pull signal generation circuit 220, and its output signal is a reproduction of the wobble signal WB from the optical disc 100.
  • the CPU 250 performs overall control of each component of the information recording / reproducing apparatus 200.
  • FIG. 14 is a flowchart showing recording data recording or reproducing processing by the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention.
  • an information recording medium is loaded by the user (step S101a).
  • step S102a initial operations such as acquisition of various information from the control data zone CDZ are performed.
  • step S103a under the control of the CPU 250, for example, in the control data zone CDZ, it is determined whether or not the wobble is preformatted.
  • step S103a At the same time or before and after, under the control of the CPU 250, for example, it is determined whether or not a predetermined data such as dummy data is pre-recorded in the recording area of the section without wobble (step S). 104).
  • step S103a Y es
  • step S104a Yes
  • legitimate information conforming to an encryption system such as CSS It is authenticated as a recording medium
  • step S106a it is determined whether or not recording information such as DVD content is to be recorded under the control of the CPU 250 (step S106a).
  • recording information is recorded (step S106a: Yes)
  • recording information such as DVD content is recorded under the control of the CPU 250 (step S107a).
  • step S108a it is determined whether or not to update the file system in response to recording of the recording information.
  • step S108a Yes
  • step S109a an extended additional recording or rewriting recording is performed on the file system under the control of the CPU 250.
  • step S109a No
  • this step S109a is omitted.
  • step S 106a determines whether or not the recording information such as DVD content is reproduced under the control of the CPU 250. Is determined (step S111a). If you want to play back recorded information (step 3111 &: ⁇ 63), Under the control of 11250, the recorded information is reproduced (step S112a). On the other hand, when the recorded information is not reproduced (step S11la: No), this step SI12a is omitted.
  • step SI 10a it is determined whether or not the recording information recording process or the reproducing process is to be ended.
  • step Sl lOa Yes
  • step S 103a the wobble is intermittently preformatted in the control data zone CDZ. If it is determined that there is no pre-recording (step S 103a: No), or in addition, as a result of the determination in step 104a described above, it is determined that the predetermined data is not pre-recorded in the recording area of the wobble-free section.
  • Step S104a No
  • FIG. 15 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • FIG. 5B is another schematic diagram (part 3) conceptually showing an arrangement relationship with the recording area of the wobbled section which is a specific example of the two recording areas.
  • symbol is attached
  • the boundary position between the recording area of the section without wobble and the recording area of the section with wobble in particular, in the other part of the management information FSlb force Is recorded from a position separated by a predetermined length (so-called run-up section).
  • a general information recording apparatus acquires clock information and address information in a recording area of a wobbled section having a predetermined length after the control information is preformatted, and the information recording apparatus It is possible to synchronize (lock) with the recording clock to be held.
  • the information recording apparatus can record the other part FSlb of the management information in a recording area between wobbles with higher accuracy.
  • FIG. 16 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • FIG. 10 is another schematic diagram (part 4) conceptually showing the arrangement relationship between the wobbled section and the recording area, which is a specific example of the two recording areas.
  • symbol is attached
  • the other part FSlb of the management information is an address indicating the position of predetermined data such as encryption key information or dummy data.
  • Pointer position information such as
  • the predetermined data can be reproduced more quickly and accurately based on the pointer position information included in the other part FS lb of the management information recorded in the recording area of the section with wobble.
  • a part of the predetermined data that is not specified by the pointer position information may be managed as “Un-allocated AreaJ!” By the file system.
  • a part of the management information FSla includes pointer position information such as an address indicating the position of predetermined data.
  • pointer position information such as an address indicating the position of predetermined data.
  • FIG. 17 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobbleless section which is a specific example of the first recording area of the present invention, and a recording area of the present invention.
  • FIG. 10 is another schematic diagram (No. 5) conceptually showing an arrangement relationship with the recording area of the section with wobble, which is a specific example of the second recording area.
  • a plurality of wobbleless section recording areas are provided, and at least one wobbleless section recording area includes the information recording section. It is included in the control data zone CDZ for recording attribute management information that manages the attributes of media (for example, type identification information).
  • the information recording apparatus described above identifies that there is a recording area of a no-wobble section, for example, in the control data zone. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the recording area of the wobble-free section. Is possible. [0181] More specifically, as shown in FIG. 18 (a), a plurality of recording areas in a section without wobble and a recording area in a section with a plurality of wobbles are arranged randomly (randomly). You may do it. Alternatively, as shown in FIG.
  • the information recording apparatus described above identifies that there are a plurality of first recording areas. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the recording area of the wobble-free section. It is.
  • FIG. 19 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • FIG. 10 is another schematic diagram (part 6) conceptually showing the positional relationship with the recording area of the section with wobble, which is a specific example of the two recording areas.
  • symbol is attached
  • the file system FSla can record across the recording area of the section with wobble and the recording area of the section without wobble. It is. As a result, for example, even when the amount of data in the file system FSla is large, the file system can be recorded continuously in one piece in the recording area.
  • FIG. 20 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention.
  • FIG. 10B is another schematic diagram (part 7) conceptually showing an arrangement relationship with the recording area of the wobbled section which is a specific example of the two recording areas. It should be noted that the same detailed configuration as the above-described one is substantially the same. The reference numerals are assigned, and the description thereof is omitted as appropriate.
  • the file system FSla in particular, in the recording area in the wobbled section, the starting end force of the recording area in the non-wobbled section has a predetermined distance. Only recording is possible away from the inner periphery. As a result, for example, when the data amount of the file system FS la is small, the file system can be recorded using the recording area more efficiently.
  • the power described for a write-once or rewritable optical disc as an example of an information recording medium, and a recorder or player related to an optical disc as an example of an information recording device are also applicable.
  • the present invention is not limited to the above-described embodiments, but can be appropriately modified within the scope of the claims and the entire specification.
  • a medium, an information recording apparatus and method, and a computer program for recording control are also included in the technical scope of the present invention.
  • the information recording medium, information recording apparatus and method, and computer program according to the present invention use laser light such as DVD (Digital Versatile Disc), BD (Blu-ray Disc), and CD (Compact Disc). It can be used for an information recording medium such as an optical disc that can be recorded and reproduced by irradiation, and can also be used for an information recording device of the information recording medium. Further, the present invention can also be used for an information recording device or the like that is mounted on or connectable to various computer equipment for consumer use or business use.

Abstract

An information recording medium (100) is provided with a first recording area (area without wobbles), which is for recording or reproducing recording information and has unpreformatted control information, i.e., clock information (wobbles) or address information (LPP); and a second recording area (area with wobbles) having preformatted control information. In the second recording area, a part of or the entire section (FS1a) of management information (File System) for managing recording positions or reproducing positions of the recording information can be arranged or recorded.

Description

情報記録媒体、情報記録装置及び方法、並びに、コンピュータプログラム 技術分野  Information recording medium, information recording apparatus and method, and computer program
[0001] 本発明は、例えば DVD (Digital Versatile Disc)、 BD (Blu- ray Disc)、 CD (Compac t Disc)等のレーザ光を照射することによって記録及び再生が可能な光ディスク等の 情報記録媒体、当該情報記録媒体の情報記録装置及び方法、並びに、コンビユー タプログラムの技術分野に関する。 背景技術  The present invention relates to an information recording medium such as an optical disc that can be recorded and reproduced by irradiating laser light such as a DVD (Digital Versatile Disc), a BD (Blu-ray Disc), and a CD (Compact Disc). The present invention relates to an information recording apparatus and method for the information recording medium, and a technical field of a computer program. Background art
[0002] 特許文献 1、 2等に、 DVD— RZRW等の記録型情報記録媒体に予め暗号化情報 を記録して販売し、ネットワークを介して暗号ィ匕された DVDビデオコンテンツ (以下、 適宜「暗号化コンテンツ」と称す)を配信する配信システムが開示されている。この配 信システムにお!/、ては、従来の DVD— RZRW等の記録型情報記録媒体と同一の 物理構造の情報記録媒体に、従来の DVD— ROM等の再生専用型メディアに適用 された暗号化情報を、コントロールデータゾーン等の制御領域に、販売前にプリ記録 している。  [0002] In Patent Documents 1 and 2, etc., DVD-Video content that has been recorded in advance on a recordable information recording medium such as a DVD—RZRW and sold and encrypted via a network (hereinafter referred to as “ A distribution system that distributes “encrypted content”) is disclosed. This distribution system was applied to information-recording media with the same physical structure as recordable information recording media such as conventional DVD-RZRW and to read-only media such as conventional DVD-ROM. Encryption information is pre-recorded in a control area such as the control data zone before sales.
[0003] 他方で、このような記録型情報記録媒体における記録領域と、再生専用型情報記 録媒体における再生専用領域 (再生専用エリア）とを併せ持つ、所謂、ノ、イブリツド型 の光ディスクにおける、コンテンツの記録位置及び再生位置を管理するための管理 情報、所謂、ファイルシステムについて、次のような技術が開示されている。即ち、特 許文献 3では、このハイブリッド型の光ディスクにおける、ファイルシステムのデータ構 造に関する技術が開示されている。更に、この特許文献 3では、例えば UDF (Univer sal Disk Format)等のファイルシステムを用いた、ハイブリッド型の CD— RZW等の 書き換え可能な情報記録媒体の具体例について、開示されている。また、特許文献 4では、マルチセッション方式における、複数のファイルシステムのデータ構造に関す る技術が開示されている。  [0003] On the other hand, content in a so-called noble type optical disc having both a recording area in such a recordable information recording medium and a read-only area (playback-only area) in a read-only information recording medium The following technologies are disclosed for management information for managing the recording position and the reproduction position of the file, that is, a so-called file system. That is, Patent Document 3 discloses a technique related to the data structure of the file system in this hybrid optical disc. Further, Patent Document 3 discloses a specific example of a rewritable information recording medium such as a hybrid CD-RZW using a file system such as UDF (Univer sal Disk Format). Patent Document 4 discloses a technique relating to the data structure of a plurality of file systems in the multi-session method.
[0004] 特許文献 1：特開 2001— 307427号公報  [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2001-307427
特許文献 2：特開 2001— 357001号公報 特許文献 3：特開 2003 - 272309号公報 Patent Document 2: Japanese Patent Laid-Open No. 2001-357001 Patent Document 3: Japanese Patent Laid-Open No. 2003-272309
特許文献 4:特開平 7— 182218号公報  Patent Document 4: JP-A-7-182218
非特許文献 1：「DVDのコンテンツ保護」東芝レビュー Vol.58,No6(2003)  Non-Patent Document 1: “DVD Content Protection” Toshiba Review Vol.58, No6 (2003)
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] し力しながら、上述した特許文献 1にお 、ては、記録型情報記録媒体に関して特別 な工夫はなされていなぐ従来の記録型情報記録媒体と同一の物理構造の記録領 域に、再生専用型 DVD (DVD— ROM)と同じ暗号ィ匕情報をプリ記録している。この ため、通常巿販されている DVDディスクにおいてプリ記録されて保護されている暗号 化情報が、何らかの手段でその暗号化情報までもコピーされた違法な記録型 DVD ディスク (以下、適宜「違法な記録型 DVDディスク」と称す)が作られた場合、正当な 暗号ィ匕システムの下で暗号ィ匕情報が記録された記録型 DVDディスク（以下、適宜「 正当な記録型 DVDディスク」と称す)と区別をすることができな 、と 、う技術的な問題 点がある。 [0005] However, in Patent Document 1 described above, the recording area of the same physical structure as that of a conventional recording information recording medium in which no special contrivance is made with respect to the recording information recording medium, The same encryption key information as a read-only DVD (DVD-ROM) is pre-recorded. For this reason, illegally recorded DVD discs (hereinafter referred to as “illegal recordings”) where encrypted information pre-recorded and protected on DVD discs that are usually sold on the market are also copied to the encrypted information by some means. Recordable DVD disc ”), a recordable DVD disc on which encryption key information is recorded under a valid encryption system (hereinafter referred to as a“ valid recordable DVD disc ”as appropriate). There is a technical problem that cannot be distinguished.
[0006] また、暗号ィ匕コンテンツの再生又は記録に関する既存のルールにおいては、記録 型 DVDディスクには、ディスクキー等の暗号ィ匕情報を記録することは推奨されて！、な い。従って、情報記録再生装置においては、制御情報を取得するためのシーク動作 等によってメディアの種類の判別が行われる際に、記録型情報記録媒体に形成され たゥォブル (Wobble)が存在するか否かが検出される。このゥォブルの検出に基づい て、正当な記録型 DVDディスクと、違法な記録型 DVDディスクとを区別する方法も 考案されて 、るが、正確に両者を区別することはできな 、と 、う技術的な問題点もあ る。  [0006] In addition, in the existing rules regarding the reproduction or recording of encrypted content, it is recommended to record encrypted information such as a disc key on a recordable DVD disc! ,Absent. Therefore, in the information recording / reproducing apparatus, whether or not there is a wobble formed on the recordable information recording medium when the type of the medium is determined by a seek operation for acquiring control information or the like. Is detected. Based on the detection of this wobble, a method for discriminating between legitimate recordable DVD discs and illegal recordable DVD discs has been devised, but it is impossible to distinguish between the two accurately. There are some problems.
[0007] また、前述した特許文献 3においては、再生専用領域と、書き換え可能な記録領域 とを備えるハイブリッド型の情報記録媒体を対象としているため、記録領域において 初期化処理が行われることを考慮しなければならず、データ構造として、マルチパー テイシヨンデータ構造を採用している。よって、従来の DVD— Videoフォーマットに基 づ 、た、コンテンツの記録を行うことが困難であると!/、う技術的な問題点が生じてしま う。また、再生専用領域において、再生専用領域におけるディレクトリ構造が記録され ているので、例えば、他の記録領域において、ディレクトリ構造が追記録されなくとも 、違法にアクセスされてしまうという技術的な問題点も生じてしまう。また、前述した、 特許文献 4では、マルチセッション方式であるので、複数のセッションに夫々対応され る複数の記録情報 (記録データ）が、一つの情報記録媒体に夫々記録されており、 例えばファイルシステム等の各種の情報力 新規のセッションが作成される度に、冗 長的に、コピー (複写)されたり、変更されたりしなければならないという技術的な問題 点も生じてしまう。 [0007] In addition, since the above-described Patent Document 3 is directed to a hybrid type information recording medium including a read-only area and a rewritable recording area, it is considered that initialization processing is performed in the recording area. The multi-partition data structure is adopted as the data structure. As a result, it is difficult to record content based on the conventional DVD-Video format! In the playback-only area, the directory structure in the playback-only area is recorded. Therefore, for example, even if the directory structure is not additionally recorded in another recording area, a technical problem of illegal access occurs. Also, since the above-described Patent Document 4 is a multi-session method, a plurality of pieces of recording information (recording data) respectively corresponding to a plurality of sessions are recorded on one information recording medium, for example, a file system. Each time a new session is created, a technical problem arises that it must be copied (duplicated) or changed redundantly.
[0008] そこで本発明は、例えば上記問題点に鑑みなされたものであり、ノ、イブリツド型の情 報記録媒体にぉ 、て、コンテンツを暗号ィ匕するための暗号ィ匕情報の機密性を高める と共に、適切にファイルシステムを記録することを可能ならしめる情報記録媒体、情報 記録装置及び方法、並びに、コンピュータをこのような情報記録装置として機能させ るコンピュータプログラムを提供することを課題とする。  Therefore, the present invention has been made in view of, for example, the above-mentioned problems, and the confidentiality of encryption information for encrypting content can be increased over an information recording medium of an abnormal type. It is an object of the present invention to provide an information recording medium, an information recording apparatus and method, and a computer program that causes a computer to function as such an information recording apparatus.
課題を解決するための手段  Means for solving the problem
[0009] (情報記録媒体）  [0009] (Information recording medium)
以下、本発明の情報記録媒体について説明する。  Hereinafter, the information recording medium of the present invention will be described.
[0010] 上記課題を解決するために、本発明の情報記録媒体は、記録情報を記録又は再 生するための、クロック情報 (Wobble)及びアドレス情報（LPP)のうち少なくとも一方で ある制御情報がプリフォーマットされていない第 1記録エリア (ゥォブル無し区間）と、 前記第 1記録エリアの、少なくとも内周側に位置されると共に、前記制御情報がプリフ ォーマットされた一又は複数の第 2記録エリア（ゥォブル有り区間）とを備え、前記第 2 記録エリアにおいて、前記記録情報の記録位置又は再生位置を管理する管理情報 (File System)の一部又は全部 (FSla)配置可能又は記録可能である。  [0010] In order to solve the above-described problem, the information recording medium of the present invention has control information that is at least one of clock information (Wobble) and address information (LPP) for recording or reproducing the recorded information. One or a plurality of second recording areas (pre-formatted first recording area (no wobble section)) and one or more second recording areas (positioned at least on the inner circumference side of the first recording area and pre-formatted with the control information) In the second recording area, part or all of the management information (File System) for managing the recording position or the reproduction position of the recording information (FSla) can be arranged or recorded in the second recording area.
[0011] 本発明の情報記録媒体によれば、第 1記録エリアにおいては、記録情報を記録又 は再生するための、例えば記録トラックの揺動 (Wobbling)に基づくクロック情報、及 び、例えばランドプリピット（Land Pre Pit)等のアドレス情報のうちの少なくとも一方で ある制御情報がプリフォーマットされていない。また、この第 1記録エリアの少なくとも 内周側に位置される第 2記録エリアにおいては、この制御情報がプリフォーマットされ ている。ここに、本願発明に係る「内周側」とは、特定の記録領域を基準にして、他の 記録領域力 その特定の記録領域の内側に位置されることを意味するようにしてもよ い。概ね同様にして、本願発明に係る「外周側」とは、特定の記録領域を基準にして 、他の記録領域が、その特定の記録領域の外側に位置されることを意味するようにし てもよい。特に、本発明では、第 2記録エリアにおいて、記録情報の記録位置又は再 生位置を管理するファイルシステム等の管理情報の一部又は全部が配置可能である [0011] According to the information recording medium of the present invention, in the first recording area, for example, clock information based on wobbling of a recording track, and land information, for example, for recording or reproducing the recording information. Control information that is at least one of address information such as pre-pit (Land Pre Pit) is not preformatted. The control information is preformatted in the second recording area located at least on the inner circumference side of the first recording area. Here, the "inner circumference side" according to the present invention refers to other recording areas based on a specific recording area. Recording area force It may mean that it is located inside that particular recording area. In a similar manner, the “outer peripheral side” according to the present invention may mean that the other recording area is located outside the specific recording area on the basis of the specific recording area. Good. In particular, in the present invention, in the second recording area, part or all of management information such as a file system for managing the recording position or the reproduction position of the recording information can be arranged.
[0012] 仮に、管理情報の一部又は全部が、第 2記録エリアにおいて配置可能としなぐ例 えば第 1記録エリアにプリ記録される場合、記録開始位置が固定されている IS0966 0を含む UDFブリッジ規格に基づいたファイルシステム等の管理情報を追記録や書 き換え記録ができない。このために、コンテンツ等の記録情報のデータ量や記録位 置が固定されてしまうという技術的な問題点が生じてしまう。 [0012] If part or all of the management information cannot be arranged in the second recording area, for example, when pre-recorded in the first recording area, the UDF bridge including IS09660 in which the recording start position is fixed Management information such as file systems based on the standard cannot be recorded or rewritten. For this reason, there arises a technical problem that the data amount and the recording position of recording information such as contents are fixed.
[0013] これに対して、本発明によれば、管理情報の一部又は全部が、制御情報がプリフォ 一マットされた第 2記録エリアにおいて配置可能である。従って、例えばユーザによつ て第 2記録エリアにおいて、記録情報の自由な配置が可能でありさらに、管理情報の 一部又は全部を時間的に後から拡張的に記録することが可能である。  [0013] On the other hand, according to the present invention, part or all of the management information can be arranged in the second recording area in which the control information is preformatted. Therefore, for example, the user can freely arrange the recording information in the second recording area, and further, part or all of the management information can be recorded in an extended manner later in time.
[0014] この結果、管理情報、又は記録情報を、自由に配置できるので、例えばユーザによ る記録処理によって、フアイナライズ処理の際などのように時間的に後からさらに拡張 的に記録することが可能である。具体的には、例えば DVDコンテンツ等の記録情報 がネットワークを介して電子配信されて一般的な情報記録装置にて追記録される場 合、当該情報記録装置にぉ 、てファイルシステム等の管理情報の追記録や書き換え 記録が行われるので、管理情報の一部又は全部を第 2記録エリアに拡張的に記録 可能である。  As a result, the management information or the recording information can be freely arranged, so that it can be further expanded and recorded later in time as in the finalizing process, for example, by the recording process by the user. Is possible. Specifically, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device, management information such as a file system is stored in the information recording device. Since additional recording and rewriting recording are performed, part or all of the management information can be expanded and recorded in the second recording area.
[0015] 以上の結果、本発明によれば、例えば UDFブリッジ規格に基づ ヽたファイルシステ ム等の管理情報の種類、又は、例えば電子配信されるコンテンツ等の記録情報の記 録手順の形態等の各種の記録手法に、より適切に対応した情報記録媒体を提供す ることを実現可能である。  [0015] As a result of the above, according to the present invention, for example, the type of management information such as a file system based on the UDF bridge standard, or the form of a recording procedure for recording information such as content distributed electronically, for example It is possible to provide an information recording medium that more appropriately corresponds to various recording methods such as the above.
[0016] 本発明の情報記録媒体の一の態様では、前記第 2記録エリアにおいて、前記管理 情報の一部又は全部は、 30000M16進数表示）の物理アドレス力も配置可能であ る。 [0016] In one aspect of the information recording medium of the present invention, in the second recording area, a part or all of the management information can be arranged with a physical address power of 30000M hexadecimal). The
[0017] この態様によれば、従来の再生機 (一般の情報記録再生装置）は、例えば光ピック アップを介して、従来と概ね同一の記録領域の位置において、管理情報の一部又は 全部を的確に読み取ることが可能である。  [0017] According to this aspect, the conventional reproducing device (general information recording / reproducing apparatus), for example, receives part or all of the management information at the position of the recording area substantially the same as the conventional one through an optical pickup. It can be read accurately.
[0018] 本発明の情報記録媒体の他の態様では、前記第 1記録エリアの外周側に位置され る、他の前記第 2記録エリア（ゥォブル有り区間）において、前記管理情報の他部 (FS lb)を (ユーザによって)記録可能であり、前記第 1記録エリアの内周側に位置される 、一の前記第 2記録エリアに配置されている前記管理情報の一部（FSla)は、前記管 理情報の他部が記録される位置に関する位置情報 (記録開始位置を示すアドレス） を含む。  [0018] In another aspect of the information recording medium of the present invention, in the other second recording area (wobbled section) located on the outer peripheral side of the first recording area, the other part of the management information (FS lb) can be recorded (by the user) and is located on the inner circumference side of the first recording area. The part of the management information (FSla) arranged in one second recording area is the It contains position information (address indicating the recording start position) related to the position where the other part of the management information is recorded.
[0019] この態様によれば、第 1記録エリアの外周側に位置される、他の第 2記録エリアにお いて、管理情報の他部が例えばユーザによって時間的に後から記録可能である。加 えて、第 1記録エリアの内周側に位置される一の第 2記録エリアに配置可能な管理情 報の一部は、管理情報の他部が他の第 2記録エリアにおいて記録される位置に関す る、例えば記録開始位置を示すアドレス等の位置情報を含む。  [0019] According to this aspect, in the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded later in time by the user, for example. In addition, part of the management information that can be placed in one second recording area located on the inner circumference side of the first recording area is the position where the other part of the management information is recorded in the other second recording area. For example, position information such as an address indicating a recording start position is included.
[0020] 仮に、管理情報の一部又は全部が、第 2記録エリアにおいて配置可能としなぐ例 えば第 1記録エリアにプリ記録される場合、他の第 2記録エリアに記録される管理情 報の他部の記録位置が固定されてしまう。このため、コンテンツ等の記録情報のデー タ量ゃ記録位置も固定されてしまうという技術的な問題点が生じてしまう。  [0020] If some or all of the management information cannot be arranged in the second recording area, for example, when pre-recorded in the first recording area, the management information recorded in the other second recording area The recording position of the other part is fixed. For this reason, there arises a technical problem that the recording position and the amount of recording information such as contents are fixed.
[0021] これに対して、この態様によれば、第 1記録エリアの外周側に位置される、他の第 2 記録エリアにおいて、管理情報の他部が例えばユーザによって時間的に後から記録 可能である。加えて、第 1記録エリアの内周側に位置される、一の第 2記録エリアに配 置可能な管理情報の一部は、管理情報の他部が他の第 2記録エリアにおいて記録さ れる位置に関する記録開始位置を示すアドレス等の位置情報を含む。  [0021] On the other hand, according to this aspect, in the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded later in time by the user, for example. It is. In addition, part of the management information that can be placed in one second recording area located on the inner circumference side of the first recording area is recorded in the other second recording area by the other part of the management information Position information such as an address indicating a recording start position relating to the position is included.
[0022] この結果、管理情報、又は記録情報を、例えばユーザによる記録処理によって、例 えばフアイナライズ処理の際などのように時間的に後から拡張的に記録することが可 能である。具体的には、例えば DVDコンテンツ等の記録情報が例えばネットワークを 介して電子配信されて一般的な情報記録装置にて追記録される場合、当該情報記 録装置においてファイルシステム等の管理情報の追記録や書き換え記録が行われる 。従って、例えば UDFブリッジ規格に基づいたファイルシステム等の管理情報の一 部を、一の第 2記録エリアに拡張的に記録可能である。力!]えて、管理情報の一部に 含まれる位置情報に基づいて、管理情報の他部を他の第 2記録エリアに拡張的に記 録可能である。 As a result, it is possible to record management information or recording information in an expanded manner later in time, for example, by a recording process by a user, for example, in the finalizing process. Specifically, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device, the information recording is performed. In the recording device, management information such as a file system is additionally recorded and rewritten. Therefore, for example, a part of management information such as a file system based on the UDF bridge standard can be expanded and recorded in one second recording area. In addition, the other part of the management information can be expanded and recorded in another second recording area based on the position information included in a part of the management information.
[0023] この管理情報の態様では、前記管理情報の一部（FSla)は、 UDF、又は ISO9660 の規格に基づく情報を含むように構成してもよい。  [0023] In this management information mode, the part of the management information (FSla) may include UDF or information based on the ISO9660 standard.
[0024] このように構成すれば、例えばファイルシステム等の管理情報の種類に基づ 、て、 当該管理情報を、より適切、且つ、より効率的に、一の第 2記録エリアにプリ記録する ことが可能である。 With this configuration, the management information is pre-recorded in one second recording area more appropriately and more efficiently based on, for example, the type of management information such as a file system. It is possible.
[0025] 本発明の情報記録媒体の他の態様では、前記第 1記録エリアの外周側に位置され る他の前記第 2記録エリア（ゥォブル有り区間）にお 、て、前記管理情報の他部（FS1 b)が、前記第 1記録エリアと当該他の第 2記録エリア（ゥォブル有り区間）との境界位 置力 所定の長さだけ離れた位置力 記録される。  In another aspect of the information recording medium of the present invention, in the other second recording area (section with wobble) located on the outer periphery side of the first recording area, the other part of the management information (FS1 b) is recorded as the boundary position force between the first recording area and the other second recording area (section with wobble) by a predetermined length.
[0026] この態様によれば、管理情報の他部が、第 1記録エリアと他の第 2記録エリアとの境 界位置から所定の長さだけ離れた位置から記録される。従って、一般的な情報記録 装置は、制御情報がプリフォーマットされている所定の長さの第 2記録エリアにおいて 、クロック情報やアドレス情報を取得し、当該情報記録装置が保持する記録クロックと 同期させることが可能である。この結果、当該情報記録装置は、管理情報の他部をよ り高精度に第 2記録エリアに記録することが可能である。  According to this aspect, the other part of the management information is recorded from a position separated by a predetermined length from the boundary position between the first recording area and the other second recording area. Therefore, a general information recording apparatus acquires clock information and address information in a second recording area having a predetermined length in which control information is preformatted, and synchronizes with the recording clock held by the information recording apparatus. It is possible. As a result, the information recording apparatus can record the other part of the management information in the second recording area with higher accuracy.
[0027] 本発明の情報記録媒体の他の態様では、前記第 1記録エリアの外周側に位置され る、他の前記第 2記録エリア（ゥォブル有り区間）において記録可能な前記管理情報 の他部（FSlb)は、（i)前記記録情報を記録又は再生する際の論理階層（ディレクトリ 構造やファイル構造やアンカーポイント）に関する情報、又は (ii)前記記録情報の属 性 (ファイルサイズ）に関する情報を含む。  [0027] In another aspect of the information recording medium of the present invention, the other part of the management information that can be recorded in the other second recording area (section with wobble) located on the outer peripheral side of the first recording area. (FSlb) is (i) information on the logical hierarchy (directory structure, file structure, anchor point) when recording or reproducing the recording information, or (ii) information on the attribute (file size) of the recording information. Including.
[0028] この態様によれば、管理情報における内容自体の特性や、拡張性の高い性質に基 づいて、管理情報の他部を、より適切、且つ、より効率的に、他の第 2記録エリアに記 録することが可能である。 [0029] 本発明の情報記録媒体の他の態様では、前記管理情報の一部又は全部は、前記 第 2記録エリアと前記第 1記録エリアとを跨って配置可能である。 [0028] According to this aspect, based on the characteristics of the content itself in the management information and the highly scalable nature, the other part of the management information is more appropriately and more efficiently stored in the other second recording. It is possible to record in the area. In another aspect of the information recording medium of the present invention, part or all of the management information can be arranged across the second recording area and the first recording area.
[0030] この態様によれば、例えばファイルシステム等の管理情報のデータ量が大きい場合 でも、記録領域において、連続的にひとかたまりで、管理情報を記録可能である。  [0030] According to this aspect, for example, even when the amount of management information such as a file system is large, the management information can be recorded continuously in one piece in the recording area.
[0031] 本発明の情報記録媒体の他の態様では、前記第 1記録エリア（ゥォブル無し区間） において、所定のデータ（FSや、ダミーデータや、暗号化情報や、その他の情報）が 、更にプリ記録されている。  [0031] In another aspect of the information recording medium of the present invention, predetermined data (FS, dummy data, encrypted information, and other information) is further recorded in the first recording area (no wobble section). Pre-recorded.
[0032] この態様によれば、第 1記録エリア力 例えばユーザデータエリアに含まれると共に 、例えば DVDコンテンツのディスクキー（暗号化情報)等の所定のデータがプリ記録 されている場合、次のような効果を享受することが可能である。即ち、一般の情報記 録再生装置は、例えばディスクキー等の所定のデータがプリ記録されている第 1記録 エリアにおいては、クロック情報としてゥォブル信号を検出することができない。従って 、一般の情報記録再生装置は、例えば DVD— ROM等の再生専用の情報記録媒 体と区別することなぐ当該再生専用の情報記録媒体と概ね同様に、本発明の情報 記録媒体に対して、再生専用の情報記録媒体に対応したアプリケーション等の特別 プログラムを実行することが可能である。ここに本願発明に係る「特別プログラム」とは [0032] According to this aspect, when the first recording area force is included in the user data area, for example, and predetermined data such as a disc key (encrypted information) of the DVD content is pre-recorded, for example, It is possible to enjoy various effects. That is, a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a first recording area in which predetermined data such as a disc key is pre-recorded. Therefore, a general information recording / reproducing apparatus is substantially the same as the reproduction-only information recording medium such as a DVD-ROM that is not distinguished from the reproduction-only information recording medium. It is possible to execute special programs such as applications that support playback-only information recording media. Here is the “special program” according to the present invention.
、例えばディスクキー（暗号ィ匕情報)等の所定のデータに基づいて、例えば DVDコン テンッ等の記録情報を復号ィ匕しつつ再生するプログラムのように、第 1記録エリアに プリ記録された所定のデータが再生可能であることを条件として、所定の再生処理を 行うプログラムを意味する。尚、この特別プログラムは、第 1記録エリアにおいてプリ記 録されてもょ 、し、第 1記録エリア以外の記録領域にぉ 、て記録されるようにしてもよ い。 For example, based on predetermined data such as a disc key (encryption key information), for example, a predetermined program pre-recorded in the first recording area, such as a program for reproducing recorded information such as a DVD content while decrypting it. This means a program that performs a predetermined reproduction process on the condition that the data can be reproduced. This special program may be pre-recorded in the first recording area, or may be recorded in a recording area other than the first recording area.
[0033] 他方で、一般の情報記録再生装置は、第 1記録エリアにおいて、クロック情報として ゥォブル信号を検出することができないので、第 1記録エリアにプリ記録されている暗 号ィ匕情報等の所定のデータを書き換えることは不可能である。従って、例えば、当該 情報記録媒体の著作権保護を実現することが可能である。尚、第 2記録エリア (ゥォ ブル有りエリア）においては、前述したクロック情報としてゥォブル信号を検出すること が可能であるので、一般の記録処理を行うことが可能である。 [0034] その他の効果として、第 1記録エリアは、例えばクロック情報等の制御情報がプリフ ォーマットされていないので、この第 1記録エリアにおいては、一般の情報記録装置 によって、例えば、正当な暗号ィヒシステムに基づぐ暗号化情報等の所定のデータ 力 意図しない違法な情報によって上書きされたり、改ざんされたりすることは殆ど又 は完全になくなる。 [0033] On the other hand, since a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in the first recording area, the information recording / reproducing apparatus prerecorded in the first recording area, etc. It is impossible to rewrite predetermined data. Therefore, for example, copyright protection of the information recording medium can be realized. In the second recording area (the wobbled area), the wobble signal can be detected as the clock information described above, so that general recording processing can be performed. [0034] As another effect, since control information such as clock information is not pre-formatted in the first recording area, in this first recording area, for example, a valid encryption system is used by a general information recording device. Predetermined data force such as encryption information based on, almost never or completely being overwritten or altered by unintended illegal information.
[0035] 以上の結果、第 1記録エリアに予めプリ記録された、例えば暗号化情報を含む所定 のデータの機密性を高く保持する、即ち、セキュアな状態にすることが可能となる。よ つて、所定のデータの違法なコピーが行われた記録型情報記録媒体を作成又は製 造することは殆ど又は完全に不可能となる。  As a result of the above, it is possible to maintain high confidentiality of predetermined data pre-recorded in the first recording area, for example, including encrypted information, that is, to be in a secure state. Therefore, it becomes almost or completely impossible to create or manufacture a recordable information recording medium on which illegal copying of predetermined data is performed.
[0036] 更に他の効果として、例えば、記録情報を再生する際に、最初にアクセスされ、記 録情報の再生が許可される力否かが判定されるための判定領域 (所謂、再生設定領 域)が、第 1記録エリアに含まれる場合、次のような効果を享受することが可能である 。即ち、第 1記録エリアにゥォブルはプリフォーマットされていないので、従来の再生 機 (一般の情報記録再生装置）は、当該ゥォブルを検出できないので、一般の情報 記録再生装置は、少なくとも判定領域における再生処理において、本発明の情報記 録媒体と、一般的な、例えば DVD— ROM等の再生専用の情報記録媒体とを区別 することができない。この結果、従来の再生機は、一般的な再生専用の情報記録媒 体と同様に、本発明の情報記録媒体に対して、再生処理を行うことが可能である。  [0036] Further, as another effect, for example, when playing back recorded information, a judgment area (so-called playback setting area) for judging whether or not power to permit playback of recorded information is first accessed. Area) is included in the first recording area, it is possible to enjoy the following effects. That is, since the wobble is not pre-formatted in the first recording area, the conventional player (general information recording / reproducing device) cannot detect the wobble. Therefore, the general information recording / reproducing device reproduces at least the judgment area. In processing, the information recording medium of the present invention cannot be distinguished from a general reproduction-only information recording medium such as a DVD-ROM. As a result, the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
[0037] 以上の結果、例えば CSS等の暗号ィ匕システムによって、著作権が保護されたコン テンッを、記録型の情報記録媒体によって、一般のユーザに供給し、供給されたコン テンッを、従来の再生機によって再生処理を行わせることが可能となる。従って、本 発明の情報記録媒体によれば、コンテンツの著作権の保護と、再生互換性の維持と の両立を実現することが可能となる。  [0037] As a result of the above, for example, content protected by a cryptographic system such as CSS is supplied to a general user using a recording-type information recording medium. It becomes possible to perform the reproduction process by the reproduction apparatus. Therefore, according to the information recording medium of the present invention, it is possible to realize both the protection of the copyright of the content and the maintenance of reproduction compatibility.
[0038] 更に他の効果として、第 1記録エリアが、更に、例えばユーザによって記録情報を 記録可能なユーザデータエリアに含まれる場合、次のような効果を享受することが可 能である。即ち、従来の再生機 (一般の情報記録再生装置）は、例えば DVDコンテ ンッのタイトル情報が記録されている第 1記録エリアにおいては、クロック情報としてゥ ォブル信号を検出することができない。従って、一般の情報記録再生装置は、例えば DVD— ROM等の再生専用の情報記録媒体と区別することなぐ当該再生専用の情 報記録媒体と概ね同様に、本発明の情報記録媒体に対して、再生再開処理 (レジュ ーム処理： Resume Operation)を行うことが可能である。ここに、本願発明に係る「再 生再開処理 (レジューム処理)」とは、例えば DVDプレーヤ一等の情報再生装置に おいて、情報記録媒体の再生処理の間に、例えばユーザによって、再生途中で当該 情報記録媒体が取り出され、再度、同一の情報記録媒体が挿入された場合、再生途 中のコンテンツ等の記録情報を、その再生途中から継続して、再度、再生する処理を 意味する。 [0038] As yet another effect, when the first recording area is further included in a user data area in which recording information can be recorded by a user, for example, the following effects can be obtained. That is, a conventional player (general information recording / reproducing device) cannot detect a wobble signal as clock information in, for example, a first recording area in which title information of a DVD content is recorded. Therefore, a general information recording / reproducing apparatus is, for example, In almost the same way as a reproduction-only information recording medium such as a DVD-ROM that is not distinguished from the reproduction-only information recording medium, the reproduction resume processing (resume operation: Resume Operation: ) Can be performed. Here, the “reproduction resume process (resume process)” according to the present invention is an information reproducing apparatus such as a DVD player, for example, during the reproduction process of the information recording medium. When the information recording medium is taken out and the same information recording medium is inserted again, it means a process of replaying the recorded information such as the content being reproduced from the middle of the reproduction again.
[0039] 具体的には、この情報再生装置は、先ず (一)再生途中で当該情報記録媒体が取 り出された瞬間に再生していた、記録情報の再生位置を示すアドレス、（二）当該情 報記録媒体にお!、て再生されて!、た記録情報のタイトル情報、又は (三)ユーザデー タエリアの先頭部分に存在する所定の位置を示すデータ列等の、再生途中の記録 情報を特定可能な特定情報を、例えば内部メモリ等の記憶手段にお!、て記憶する。 次に、情報再生装置は、再度、情報記録媒体が挿入された場合に、例えばタイトル 情報等の特定情報が記録されて 、る領域にぉ 、て、 (i)クロック情報としてゥォブル 信号が検出されるか否か、又は、（ii)特定情報を再生可能である力否か、などを判定 する。次に、情報再生装置は、（i)特定情報が記録されている領域においてクロック 情報としてゥォブル信号が検出されな 、場合、又は (ii)例えばタイトル情報等の特定 情報を再生可能である場合、記憶されて ヽる記録情報の再生位置を示すアドレスの 近傍から、再生を再開することが可能である。  [0039] Specifically, this information reproducing apparatus firstly (1) an address indicating the reproduction position of recorded information that was reproduced at the moment when the information recording medium was removed during reproduction; (2) Recorded information during playback, such as title information of recorded information, or (3) a data string indicating a predetermined position existing at the beginning of the user data area. Is stored in storage means such as an internal memory. Next, when the information recording medium is inserted again, the information reproducing apparatus records, for example, specific information such as title information, and (i) a wobble signal is detected as clock information. Whether or not (ii) the ability to reproduce the specific information. Next, the information reproducing apparatus (i) when a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) when specific information such as title information can be reproduced, Playback can be resumed from the vicinity of the address indicating the playback position of the recorded information that is stored.
[0040] この所定のデータに係る態様では、前記所定のデータは、記録情報の暗号化のた めの暗号ィ匕情報であるように構成してもよ 、。  [0040] In the aspect related to the predetermined data, the predetermined data may be configured to be encryption key information for encrypting recorded information.
[0041] このように構成すれば、第 1記録エリアに、ユーザデータエリアに記録されるコンテ ンッ等の記録情報の暗号化に関わる暗号化情報がプリ記録される。この結果、一般 のドライブでは暗号ィ匕情報を記録できないため、万が一、例えばブランクディスク等 のコンテンツが未記録状態の当該情報記録媒体が流出しても、コンテンッの違法コ ピーを防止し、著作権保護を実現し、安全性を高めることが可能である。更に、一枚 一枚個別に、暗号ィ匕情報を記録可能であるので、情報記録媒体を一般的に大量販 売するのではなぐ個別使用の用途に限定した当該情報記録媒体の使用が可能とな る。 [0041] With this configuration, encrypted information relating to encryption of recorded information such as content recorded in the user data area is pre-recorded in the first recording area. As a result, encryption information cannot be recorded with a general drive, so even if the information recording medium in which content such as a blank disc is not recorded leaks out, illegal copying of content is prevented and copyrights are prevented. It is possible to achieve protection and increase safety. Furthermore, it is possible to record encryption key information individually, so that information recording media are generally sold in large quantities. It is possible to use the information recording medium limited to the purpose of individual use rather than selling it.
[0042] この所定のデータに係る態様では、前記所定のデータは、少なくともユーザデータ エリア内にプリ記録されて 、るように構成してもよ 、。  In the aspect related to the predetermined data, the predetermined data may be configured to be pre-recorded at least in the user data area.
[0043] このように構成すれば、所定のデータがプリ記録されている第 1記録エリア力 ユー ザデータエリアに含まれる場合、 PC用途の暗号ィ匕に用いる暗号化情報等の各種の 情報を、例えば Videoコンテンツ等の記録情報と並列させてプリ記録することが可能 である。この結果、記録情報や記録方法に対応して、各種の様々な用途に、当該情 報記録媒体を使用することが可能となる。  [0043] With this configuration, when the predetermined data is included in the first recording area power user data area, various kinds of information such as encryption information used for encryption for PC use are stored. For example, it is possible to pre-record in parallel with recording information such as video content. As a result, the information recording medium can be used for various various purposes in accordance with the recording information and the recording method.
[0044] この管理情報に係る態様では、前記第 1記録エリアの外周側に位置される、他の前 記第 2記録エリア（ゥォブル有り区間）にお 、て、前記管理情報の他部 (FSlb)が（ュ 一ザによって)記録可能であり、前記管理情報の他部（FSlb)は、前記所定のデータ (ダミーデータ等）の位置を示すポインタ位置情報、又は、アドレス情報を含むように 構成してちょい。  [0044] In the aspect relating to the management information, in the other second recording area (section with wobble) located on the outer peripheral side of the first recording area, the other part (FSlb ) Can be recorded (by the user), and the other part (FSlb) of the management information includes pointer position information indicating the position of the predetermined data (dummy data, etc.) or address information. Do it.
[0045] このように構成すれば、他の第 2記録エリアに記録される管理情報の他部に含まれ るポインタ位置情報、又は、アドレス情報に基づいて、所定のデータ力 より迅速且つ 的確に再生されることが可能である。  [0045] According to this configuration, based on the pointer position information or address information included in the other part of the management information recorded in the other second recording area, it is quicker and more accurate than the predetermined data force. It can be played back.
[0046] この管理情報に係る態様では、前記管理情報の一部 (FSla)は、前記所定のデー タ (ダミーデータ等）の位置を示すポインタ位置情報を含むように構成してもよ 、。 In the aspect relating to the management information, a part of the management information (FSla) may be configured to include pointer position information indicating a position of the predetermined data (dummy data or the like).
[0047] このように構成すれば、一の第 2記録エリアに記録される管理情報の一部に含まれ るポインタ位置情報に基づいて、所定のデータ力 より迅速且つ的確に再生されるこ とが可能である。 [0047] With this configuration, playback can be performed more quickly and accurately than a predetermined data force based on pointer position information included in a part of the management information recorded in one second recording area. Is possible.
[0048] 本発明の情報記録媒体の他の態様では、前記管理情報 (File System)の一部又は 全部 (FSla)は、当該管理情報が、 UDFブリッジの規格に基づく場合、 UDFの規格 に基づく情報に加えて、 ISO9660の規格に基づく情報を含む。  [0048] In another aspect of the information recording medium of the present invention, a part or all of the management information (File System) (FSla) is based on the UDF standard when the management information is based on the UDF bridge standard. In addition to information, information based on the ISO9660 standard is included.
[0049] この態様によれば、例えばファイルシステム等の管理情報の種類に基づいて、当該 管理情報を、より適切、且つ、より効率的に、第 2記録エリアにプリ記録することが可 能である。 [0050] 本発明の情報記録媒体の他の態様では、複数の前記第 1記録エリア (ゥォブル無し 区間)を備える。 [0049] According to this aspect, for example, based on the type of management information such as a file system, the management information can be pre-recorded in the second recording area more appropriately and more efficiently. is there. [0050] In another aspect of the information recording medium of the present invention, a plurality of the first recording areas (no wobble sections) are provided.
[0051] この態様によれば、例えば、後述される情報記録装置によって、複数の第 1記録ェ リアが存在することが識別される。この識別に基づいて、当該情報記録媒体が、第 1 記録エリアに管理情報の一部又は全部がプリ記録されている情報記録媒体であると 、迅速且つ的確に判定することが可能である。  [0051] According to this aspect, for example, the information recording device described later identifies that there are a plurality of first recording areas. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the first recording area.
[0052] 本発明の情報記録媒体の他の態様では、複数の前記第 1記録エリア (ゥォブル無し 区間)を備え、少なくとも一つの前記第 1記録エリア (ゥォブル無し区間）は、当該情報 記録媒体の属性 (種類の識別情報)を管理する属性管理情報を記録するための属 性管理エリア（CDZ)に含まれる。  [0052] In another aspect of the information recording medium of the present invention, the information recording medium includes a plurality of the first recording areas (no wobbled sections), and at least one of the first recording areas (no wobbled sections) is the information recording medium. It is included in the attribute management area (CDZ) for recording attribute management information for managing attributes (type identification information).
[0053] この態様によれば、例えば、後述される情報記録装置によって、例えばコントロール データゾーン等の属性管理エリア内に、第 1記録エリアが存在することが識別される。 この識別に基づいて、当該情報記録媒体が、第 1記録エリアに管理情報の一部又は 全部がプリ記録されている情報記録媒体であると、迅速且つ的確に判定することが 可能である。  [0053] According to this aspect, for example, the information recording apparatus described later identifies that the first recording area exists in the attribute management area such as the control data zone. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the first recording area.
[0054] 本発明の情報記録媒体の他の態様では、複数の前記第 1記録エリア (ゥォブル無し 区間）と、複数の前記第 2記録エリア (ゥォブル有り区間）とを備え、第 1所定長の前記 第 1記録エリア（ゥォブル無し区間）と、第 2所定長の前記第 2記録エリア (ゥォブル有 り区間）とが、交互に配置されている。  [0054] In another aspect of the information recording medium of the present invention, the information recording medium includes a plurality of the first recording areas (sections without wobbles) and a plurality of the second recording areas (sections with wobbles), and has a first predetermined length. The first recording area (interval without wobble) and the second recording area (interval with wobble) having a second predetermined length are alternately arranged.
[0055] この態様によれば、例えば、後述される情報記録装置によって、第 1所定長の第 1 記録エリアと、第 2所定長の第 2記録エリアとが、交互に配置されていることが識別さ れる。この識別に基づいて、当該情報記録媒体が、第 1記録エリアに管理情報の一 部又は全部がプリ記録されて 、る情報記録媒体であると、迅速且つ的確に判定する ことが可能である。  [0055] According to this aspect, for example, the first recording area having the first predetermined length and the second recording area having the second predetermined length are alternately arranged by the information recording apparatus described later. Identified. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which a part or all of the management information is pre-recorded in the first recording area.
[0056] (情報記録装置）  [0056] (Information recording device)
以下、本発明の情報記録装置について説明する。  The information recording apparatus of the present invention will be described below.
[0057] 上記課題を解決するために、本発明の情報記録装置は、上述した本発明の情報 記録媒体 (但し、各種の態様を含む）に、前記記録情報を記録する情報記録装置で あって、前記記録情報を記録する記録手段と、（i)前記第 1記録エリア（ゥォブル無し 区間）において、所定のデータ（FSや、ダミーデータや、暗号化情報や、その他の情 報）のプリ記録が行われているか否力、又は (ii)記録領域において、第 1所定長の前 記第 1記録エリア（ゥォブル無し区間）と、第 2所定長の前記第 2記録エリア (ゥォブル 有り区間）との、交互の配置が行われているか否かの判定を行う判定手段と、前記判 定の結果、前記プリ記録が行われている、又は、前記交互の配置が行われている場 合には、前記記録情報の記録と同時に、又は、相前後して、前記管理情報の一部又 は全部 (FSla)を記録するように、前記記録手段を制御する制御手段とを備える。 In order to solve the above problems, an information recording apparatus of the present invention is an information recording apparatus that records the recording information on the above-described information recording medium of the present invention (including various aspects). Recording means for recording the recording information, and (i) in the first recording area (no wobble section), predetermined data (FS, dummy data, encrypted information, and other information) (Ii) In the recording area, the first recording area of the first predetermined length (the section without wobble) and the second recording area of the second predetermined length (the section with wobble) ) And a determination means for determining whether or not the alternating arrangement is performed, and when the result of the determination is that the pre-recording is performed or the alternating arrangement is performed Comprises a control means for controlling the recording means so as to record a part or all of the management information (FSla) simultaneously with the recording of the recording information or in succession.
[0058] 本発明の情報記録装置によれば、例えば情報記録媒体が挿入された際の初期動 作において、判定手段によって、次のような判定が行われる。即ち、判定手段によつ て、（i)第 1記録エリアにおいて、例えば、ダミーデータや、暗号化情報等の所定のデ ータのプリ記録が行われている力否かの判定が行われる。或いは、判定手段によつ て、（ii)記録領域において、第 1所定長の第 1記録エリアと、第 2所定長の第 2記録ェ リアとの、交互の配置が行われて!/、るか否かの判定が行われる。  According to the information recording apparatus of the present invention, for example, in the initial operation when the information recording medium is inserted, the following determination is performed by the determination unit. That is, the determination means (i) determines whether or not the pre-recording of predetermined data such as dummy data or encryption information is performed in the first recording area. . Alternatively, by the determination means, (ii) in the recording area, the first recording area of the first predetermined length and the second recording area of the second predetermined length are alternately arranged! /, It is determined whether or not.
[0059] この判定の結果、プリ記録が行われて 、る、又は、交互の配置が行われて!/、る場合 には、制御手段の制御下で、記録手段によって、記録情報の記録と同時に、又は、 相前後して、管理情報の他部が記録される。  [0059] As a result of this determination, in the case where pre-recording is performed, or alternating arrangement is performed! /, The recording means records and records information under the control of the control means. At the same time or in succession, the other part of the management information is recorded.
[0060] 以上の結果、当該情報記録装置による記録処理によって、管理情報を、時間的に 後から拡張的に記録することが可能である。即ち、例えば DVDコンテンツ等の記録 情報がネットワークを介して電子配信されて当該情報記録装置にて追記録される場 合、当該情報記録装置において、ファイルシステム等の管理情報の他部を、適法な 記録型の情報記録媒体として判定された情報記録媒体に迅速且つ的確に追記録し たり書き換え記録したりすることが可能である。  As a result of the above, it is possible to record the management information in an expanded manner later in time by the recording process by the information recording apparatus. That is, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by the information recording device, the other part of management information such as a file system is legally transferred to the information recording device. It is possible to quickly and accurately perform additional recording or rewritable recording on an information recording medium determined as a recording type information recording medium.
[0061] 尚、上述した本発明の情報記録媒体が有する各種態様に対応して、本発明の情報 記録装置も各種態様を採ることが可能である。  Incidentally, in response to the various aspects of the information recording medium of the present invention described above, the information recording apparatus of the present invention can also adopt various aspects.
[0062] (情報記録方法） [0062] (Information recording method)
以下、本発明の情報記録方法について説明する。  Hereinafter, the information recording method of the present invention will be described.
[0063] 上記課題を解決するために、本発明の情報記録方法は、上述した本発明の情報 記録媒体 (但し、各種の態様を含む）に、前記記録情報を記録する記録手段を備え る情報記録装置における情報記録方法であって、 (i)前記第 1記録エリア（ゥォブル 無し区間）において、所定のデータ (FSや、ダミーデータや、暗号化情報や、その他 の情報）のプリ記録が行われている力否力、又は (ii)記録領域において、第 1所定長 の前記第 1記録エリア（ゥォブル無し区間）と、第 2所定長の前記第 2記録エリア（ゥォ ブル有り区間）との、交互の配置が行われている力否かの判定を行う判定工程と、前 記判定の結果、前記プリ記録が行われている、又は、前記交互の配置が行われてい る場合には、前記記録情報の記録と同時に、又は、相前後して、前記管理情報の一 部又は全部 (FSla)を記録するように、前記記録手段を制御する制御工程とを備える [0063] In order to solve the above-described problem, the information recording method of the present invention provides the above-described information of the present invention. An information recording method in an information recording apparatus comprising a recording means for recording the recording information on a recording medium (including various aspects), wherein (i) in the first recording area (no wobble section), Pre-recording of predetermined data (FS, dummy data, encrypted information, and other information), or (ii) the first recording area of the first predetermined length in the recording area (A section without wobble) and a determination step for determining whether or not power is alternately arranged between the second predetermined length of the second recording area (section with wobble), and As a result, when the pre-recording is performed or the alternate arrangement is performed, a part or all of the management information (at the same time as or after the recording of the recording information) ( Control step of controlling the recording means to record FSla) With
[0064] 本発明の情報記録方法によれば、上述した本発明の情報記録装置が有する各種 利益を享受することが可能となる。 [0064] According to the information recording method of the present invention, it is possible to receive various benefits of the above-described information recording apparatus of the present invention.
[0065] 尚、上述した本発明の情報記録装置が有する各種態様に対応して、本発明の情報 記録方法も各種態様を採ることが可能である。  Incidentally, in response to the various aspects of the information recording apparatus of the present invention described above, the information recording method of the present invention can also adopt various aspects.
[0066] (コンピュータプログラム）  [0066] (Computer program)
以下、本発明のコンピュータプログラムについて説明する。  Hereinafter, the computer program of the present invention will be described.
[0067] 上記課題を解決するために、本発明の記録制御用のコンピュータプログラムは、上 述した本発明の情報記録装置 (但し、その各種態様を含む）に備えられたコンビユー タを制御する記録制御用のコンピュータプログラムであって、該コンピュータを、前記 記録手段、前記判定手段、及び、前記制御手段のうち少なくとも一部として機能させ る。  [0067] In order to solve the above problem, a recording control computer program according to the present invention is a recording program for controlling a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof). A computer program for control, which causes the computer to function as at least part of the recording unit, the determination unit, and the control unit.
[0068] 本発明に係るコンピュータプログラムによれば、当該コンピュータプログラムを格納 する ROM、 CD-ROM, DVD-ROM,ハードディスク等の記録媒体から、当該コ ンピュータプログラムをコンピュータに読み込んで実行させれば、或いは、当該コンビ ユータプログラムを、通信手段を介してコンピュータにダウンロードさせた後に実行さ せれば、上述した本発明の情報記録装置を比較的簡単に実現できる。  [0068] According to the computer program of the present invention, if the computer program is read from a recording medium such as a ROM, a CD-ROM, a DVD-ROM, and a hard disk that stores the computer program and then executed by the computer, Alternatively, if the computer program is downloaded to a computer via communication means and then executed, the above-described information recording apparatus of the present invention can be realized relatively easily.
[0069] 尚、上述した本発明の情報記録装置における各種態様に対応して、本発明の各コ ンピュータプログラムも各種態様を採ることが可能である。 [0070] 上記課題を解決するために、コンピュータ読取可能な媒体内のコンピュータプログ ラム製品は、上述した本発明の情報記録装置 (但し、その各種態様を含む）に備えら れたコンピュータにより実行可能なプログラム命令を明白に具現ィ匕し、該コンピュータ を、前記記録手段、前記判定手段、及び、前記制御手段のうち少なくとも一部として 機能させる。 [0069] Incidentally, in response to the various aspects of the information recording apparatus of the present invention described above, each computer program of the present invention can also adopt various aspects. [0070] In order to solve the above problems, a computer program product in a computer-readable medium can be executed by a computer provided in the above-described information recording apparatus of the present invention (including various aspects thereof). The program instruction is clearly embodied, and the computer functions as at least a part of the recording unit, the determination unit, and the control unit.
[0071] 本発明のコンピュータプログラム製品によれば、当該コンピュータプログラム製品を 格納する ROM、 CD-ROM, DVD-ROM,ハードディスク等の記録媒体から、当 該コンピュータプログラム製品をコンピュータに読み込めば、或いは、例えば伝送波 である当該コンピュータプログラム製品を、通信手段を介してコンピュータにダウン口 ードすれば、上述した本発明の情報記録装置を比較的容易に実施可能となる。更に 具体的には、当該コンピュータプログラム製品は、上述した本発明の情報記録装置と して機能させるコンピュータ読取可能なコード (或いはコンピュータ読取可能な命令） 力 構成されてよい。  [0071] According to the computer program product of the present invention, if the computer program product is read into a computer from a recording medium such as a ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product, or For example, if the computer program product, which is a transmission wave, is downloaded to a computer via communication means, the information recording apparatus of the present invention described above can be implemented relatively easily. More specifically, the computer program product may comprise a computer readable code (or computer readable instruction) that functions as the information recording apparatus of the present invention described above.
[0072] 本発明のこのような作用及び他の利得は次に説明する実施例から明らかにされる。  [0072] These effects and other advantages of the present invention will become apparent from the embodiments described below.
[0073] 以上説明したように、本発明の情報記録媒体によれば、第 1記録エリア、及び、第 2 記録エリアを備える。この結果、管理情報、又は記録情報を、例えばユーザによる記 録処理によって、例えばフアイナライズ処理の際などのように時間的に後から拡張的 に記録することが可能である。具体的には、例えば DVDコンテンツ等の記録情報が 例えばネットワークを介して、電子配信され、一般的な情報記録装置において、追記 録される場合、当該情報記録装置において、ファイルシステム等の管理情報の追記 録ゃ書き換え記録が行われるので、管理情報の一部又は全部を第 2記録エリアに拡 張的に記録可能である。以上の結果、本発明によれば、例えば UDFブリッジ規格に 基づいたファイルシステム等の管理情報の種類、又は、例えば電子配信されるコンテ ンッ等の記録情報の記録手順の形態等の各種の記録手法に、より適切に対応した 情報記録媒体を提供することを実現可能である。 [0073] As described above, according to the information recording medium of the present invention, the first recording area and the second recording area are provided. As a result, it is possible to record management information or recording information in an expansive manner later in time, for example, in a finalizing process, for example, by a recording process by a user. Specifically, for example, when recording information such as DVD content is electronically distributed via a network and is additionally recorded in a general information recording device, management information such as a file system is recorded in the information recording device. Since additional recording is rewritten, part or all of the management information can be expanded and recorded in the second recording area. As a result of the above, according to the present invention, various recording methods such as the type of management information such as a file system based on the UDF bridge standard, or the form of a recording procedure for recording information such as contents distributed electronically, for example In addition, it is possible to provide an information recording medium more appropriately.
[0074] また、本発明の情報記録装置及び方法によれば、記録手段、判定手段及び工程、 並びに、制御手段及び工程を備える。この結果、例えば DVDコンテンツ等の記録情 報が、例えばネットワークを介して、電子配信され、当該情報記録装置によって、追 記録される場合、当該情報記録装置において、ファイルシステム等の管理情報の一 部又は全部を、適法な記録型の情報記録媒体として判定された、情報記録媒体に、 迅速且つ的確に、追記録したり、書き換え記録したりすることが可能である。 [0074] Further, according to the information recording apparatus and method of the present invention, a recording unit, a determination unit and a process, and a control unit and a process are provided. As a result, for example, recorded information such as DVD content is electronically distributed via a network, for example, and is added by the information recording apparatus. In the case of recording, the information recording device records part or all of the management information such as the file system on the information recording medium determined as a legal recording type information recording medium quickly and accurately. Or rewrite recording.
[0075] 更に、また、本発明のコンピュータプログラムによれば、コンピュータを上述した本発 明の情報記録装置として機能させる。 [0075] Furthermore, according to the computer program of the present invention, the computer is caused to function as the information recording apparatus of the present invention described above.
図面の簡単な説明  Brief Description of Drawings
[0076] [図 1]本発明の情報記録媒体の実施例に係る複数の記録領域を有する光ディスクの 基本構造を示した概略平面図、及び、該概略平面図に対応付けられた、その半径方 向における記録領域構造の図式的概念図である。  FIG. 1 is a schematic plan view showing a basic structure of an optical disc having a plurality of recording areas according to an embodiment of an information recording medium of the present invention, and a radial direction associated with the schematic plan view. FIG. 2 is a schematic conceptual diagram of a recording area structure in a direction.
[図 2]本発明の情報記録媒体の実施例に係る光ディスクの記録面における部分拡大 斜視図である。  FIG. 2 is a partially enlarged perspective view of a recording surface of an optical disc according to an embodiment of the information recording medium of the present invention.
[図 3]本発明の情報記録媒体の実施例に係る光ディスクの記録領域と、当該記録領 域の位置を特定可能なアドレスとの関係を示した概念的グラフである。  FIG. 3 is a conceptual graph showing the relationship between a recording area of an optical disc according to an embodiment of the information recording medium of the present invention and an address that can specify the position of the recording area.
[図 4]本発明の情報記録媒体の実施例に係る光ディスクにおいてグルーブトラックの ゥォブリング力 得られる記録時に必要なクロック情報及びアドレス情報を示した図式 的な一及び他の概念図（図 4 (a)から図 4 (d) )である。  [FIG. 4] A schematic diagram and other conceptual diagrams showing clock information and address information necessary for recording obtained in a wobbling force of a groove track in an optical disc according to an embodiment of the information recording medium of the present invention (FIG. ) To Figure 4 (d)).
[図 5]本発明の情報記録媒体の実施例に係る光ディスクの第 1記録エリアの物理的 構造の一及び他の具体例における第 1記録エリア力 得られるゥォブル信号を示した 図式的一及び他の概念図（図 5 (a)から図 5 (d) )である。  FIG. 5 is a schematic diagram showing the wobble signal obtained by the first recording area force in one example of the physical structure of the first recording area of the optical disc according to the embodiment of the information recording medium of the present invention and in another example. Fig. 5 is a conceptual diagram (Fig. 5 (a) to Fig. 5 (d)).
[図 6]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル (Wobble)有り区間の記録領域との配置関係を概 念的に示す模式図である。  [FIG. 6] A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a second description of the present invention. FIG. 5 is a schematic diagram schematically showing an arrangement relationship with a recording area in a section with wobble, which is a specific example of a recording area.
[図 7]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 1)である。  [FIG. 7] A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention. FIG. 10 is another schematic diagram (No. 1) conceptually showing an arrangement relationship with a recording area of a wobbled section which is a specific example of a recording area.
[図 8]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 2)である。 [FIG. 8] A file system, which is a specific example of the management information of the present invention, and the first recording area of the present invention. In addition to conceptually showing the positional relationship between the recording area of the wobble-free section that is a specific example of the recording area and the recording area of the wobbled section that is a specific example of the second recording area of the present invention This is a schematic diagram (Part 2).
圆 9]本発明の管理情報の一具体例であるファイルシステムの記録手順の一及び他 の類型を概念的に示す模式図（図 9 (a)及び図 9 (b) )である。 [9] FIG. 9 is a schematic diagram (FIG. 9 (a) and FIG. 9 (b)) conceptually showing one type and another type of recording procedure of the file system which is a specific example of the management information of the present invention.
[図 10]本発明の管理情報の一具体例であるファイルシステムの一及び他の種類を図 式的に示す模式図（図 10 (a)及び図 10 (b) )である。  FIG. 10 is a schematic diagram (FIG. 10 (a) and FIG. 10 (b)) schematically showing one and other types of file systems which are specific examples of management information of the present invention.
圆 11]本発明の情報記録媒体に対して、記録動作を行う情報記録装置、並びに、配 信動作を行う情報配信装置を備えた配信システムの全体構成を示したブロック図で ある。 [11] FIG. 11 is a block diagram showing an overall configuration of a distribution system including an information recording device that performs a recording operation and an information distribution device that performs a distribution operation on the information recording medium of the present invention.
[図 12]本発明の情報記録装置、及び、情報配信装置における各種の処理を示したフ ローチャートである。  FIG. 12 is a flowchart showing various processes in the information recording apparatus and information distribution apparatus of the present invention.
[図 13]本発明の情報記録媒体を記録再生する情報記録再生装置の全体構成を示 すブロック図である。 FIG. 13 is a block diagram showing an overall configuration of an information recording / reproducing apparatus for recording / reproducing an information recording medium of the present invention.
[図 14]本発明の情報記録装置の実施例に係る情報記録再生装置による記録データ の記録又は再生処理を示したフローチャートである。  FIG. 14 is a flowchart showing recording data recording or reproduction processing by the information recording / reproducing apparatus in the embodiment of the information recording apparatus of the present invention.
圆 15]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 3)である。 15) A file system which is a specific example of the management information of the present invention, a recording area of a wobbleless section which is a specific example of the first recording area of the present invention, and a second recording of the present invention. FIG. 10 is another schematic diagram (part 3) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
圆 16]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 4)である。 16) A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a second recording of the present invention. FIG. 10 is another schematic diagram (part 4) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
圆 17]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 5)である。 [図 18]本発明の第 1記録エリアの一具体例であるゥォブル (Wobble)無し区間の記録 領域が、複数存在する場合の一及び他の具体例である。尚、前述した一の詳細構成 と、概ね同様の構成には、同様の符号番号を付し、それらの説明は適宜省略する。 圆 17] A file system which is a specific example of the management information of the present invention, a recording area of a wobbleless section which is a specific example of the first recording area of the present invention, and a second recording of the present invention FIG. 5 is another schematic diagram (part 5) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area. FIG. 18 shows one and other specific examples in the case where there are a plurality of recording areas in a wobble-free section, which is a specific example of the first recording area of the present invention. In addition, the same code | symbol number is attached | subjected to the one detailed structure mentioned above and the structure substantially the same, and those description is abbreviate | omitted suitably.
[図 19]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 6)である。  [FIG. 19] A file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention. FIG. 10 is another schematic diagram (part 6) conceptually showing the arrangement relationship with the recording area of the section with wobble, which is a specific example of the recording area.
[図 20]本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリ ァのー具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記 録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示 す他の模式図（その 7)である。  FIG. 20 is a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and the second description of the present invention. FIG. 10 is another schematic diagram (part 7) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the recording area.
符号の説明  Explanation of symbols
[0077] 1· ··センターホール、 10· ··トラック、 11· ··セクタ、 100· ··光ディスク、 101· ··リードイン エリア、 102· ··データエリア、 103· ··リードアウトエリア、 106· ··透明基板、 107· ··記録 層、 108· ··反射層、 109· ··ゥォブル、 150- OPCエリア、 200· ··情報記録装置、 201 …対物レンズ、 202· ··光ピックアップ、 203· ··スピンドルモータ、 204· ··ヘッドアンプ、 210…総和生成回路、 211· ··ピットデータ復調回路、 212· ··ピットデータ訂正回路、 213· ··ノ ッファ、 214· "インターフェース、 220· ··プッシュプル信号生成回路、 221· ·· ローノ スフィルタ、 222· ··サーボユニット、 227· "RANDテーブル、 250"-CPU、 30 0…情報配信装置、 400…外部ネットワーク、 CK1…第 1クロック信号、 CK2 第 2ク ロック信号、 GT…グルーブトラック、 LT…ランドトラック、 LB…レーザ光、 LPP…ラン ドプリピット、 Key 1…暗号ィ匕情報 (ディスクキーや、ディスクキーセット）、 Key2…暗 号化情報（タイトルキー）、 CDZ…コントロールデータゾーン、  [0077] 1 ··· Center hall, 10 ··· Track, 11 ··· Sector, 100 ··· Optical disc, 101 ··· Lead-in area, 102 ··· Data area, 103 ··· Lead-out area 106, transparent substrate, 107, recording layer, 108, reflective layer, 109, wobble, 150-OPC area, 200, information recording device, 201, objective lens, 202, Optical pickup, 203 ··· Spindle motor, 204 ··· Head amplifier, 210 ··· Sum generation circuit ························································· No. "Interface, 220 ··· Push-pull signal generation circuit, 221 · · · Lonos filter, 222 · · · Servo unit, 227 ·" RAND table, 250 "-CPU, 30 0… Information distribution device, 400… External network , CK1 ... 1st clock signal, CK2 2nd clock signal, GT ... Groove Rack, LT ... Land track, LB ... Laser beam, LPP ... Land pre-pit, Key 1 ... Encryption key information (disc key and disc key set), Key2 ... Encryption information (title key), CDZ ... Control data zone ,
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0078] 以下、本発明を実施するための最良の形態について実施例毎に順に図面に基づ いて説明する。 Hereinafter, the best mode for carrying out the present invention will be described in each embodiment in order with reference to the drawings.
[0079] (1)情報記録媒体の実施例 [0079] (1) Examples of information recording medium
次に、図 1から図 10を参照して、本発明の情報記録媒体の実施例について詳細に 説明する。 Next, with reference to FIGS. 1 to 10, an embodiment of the information recording medium of the present invention will be described in detail. explain.
[0080] (1 - 1)基本構成 (物理的な構造）  [0080] (1-1) Basic configuration (physical structure)
先ず、図 1及び図 2を参照して、本発明の情報記録媒体の実施例に係る光ディスク の基本構成について説明する。ここに、図 1は、本発明の情報記録媒体の実施例に 係る複数の記録領域を有する光ディスクの基本構造を示した概略平面図、及び、該 概略平面図に対応付けられた、その半径方向における記録領域構造の図式的概念 図である。図 2は、本発明の情報記録媒体の実施例に係る光ディスクの記録面にお ける部分拡大斜視図である。  First, the basic configuration of an optical disc according to an embodiment of the information recording medium of the present invention will be described with reference to FIG. 1 and FIG. FIG. 1 is a schematic plan view showing the basic structure of an optical disc having a plurality of recording areas according to an embodiment of the information recording medium of the present invention, and the radial direction associated with the schematic plan view. FIG. 2 is a schematic conceptual diagram of a recording area structure in FIG. FIG. 2 is a partially enlarged perspective view on the recording surface of the optical disc according to the embodiment of the information recording medium of the present invention.
[0081] 図 1に示されるように、光ディスク 100は、例えば、 DVDと同じく直径 12cm程度の ディスク本体上の記録面に、センターホール 1を中心として本実施例に係る（i)パワー キャリブレーションエリア PCA、（ii)レコーディングマネージメントエリア（Recording Ma nagement Area) RMA、 (iii)コントローノレデータゾーン (Control Data Zone) CDZを 有するリードインエリア 101、（iv)データエリア 102、（V)リードアウトエリア 103を備え て構成されている。そして、光ディスク 100の、図示しない例えば透明基板に、少なく とも一つの記録層が積層されている。そして、この記録層の各記録領域には、例えば 、センターホール 1を中心にスパイラル状或いは同心円状に、例えば、グルーブトラッ ク及びランドトラック等のトラック 50が交互に設けられている。また、このトラック 50上に は、記録情報 (データ）が ECCブロック 51という単位で分割されて記録される。 ECC ( Error Correction Code)ブロック 51は、記録情報のエラー訂正が可能な記録情報の 管理単位である。特に、本実施例に係る光ディスクは、記録型情報記録媒体におけ る記録領域と、再生専用型情報記録媒体における再生専用領域 (再生専用エリア）と を併せ持つ、所謂、ノ、イブリツド型の光ディスクであるようにしてもよい。具体的には、 データエリアの内周部付近に、本発明の第 1記録エリアを備えるようにしてもよい。尚 [0081] As shown in FIG. 1, the optical disc 100 is a recording surface on a disc body having a diameter of about 12 cm as in the case of a DVD. (I) Power calibration area according to the present embodiment with the center hole 1 as the center. PCA, (ii) Recording Management Area RMA, (iii) Control Data Zone Lead-in area 101 with CDZ, (iv) Data area 102, (V) Lead-out area 103 It is configured with. Then, at least one recording layer is laminated on a transparent substrate (not shown) of the optical disc 100, for example. In each recording area of this recording layer, for example, tracks 50 such as a groove track and a land track are alternately provided in a spiral shape or a concentric shape with the center hole 1 as the center. On the track 50, recorded information (data) is divided and recorded in units of ECC blocks 51. ECC (Error Correction Code) block 51 is a record information management unit capable of error correction of record information. In particular, the optical disc according to the present embodiment is a so-called no-briddle type optical disc having both a recording area in a recordable information recording medium and a read-only area (playback-only area) in a read-only information recording medium. There may be. Specifically, the first recording area of the present invention may be provided near the inner periphery of the data area. still
、本発明の第 1記録エリアの詳細な説明については、後述される。 Details of the first recording area of the present invention will be described later.
[0082] より詳細には、図 2に示されるように、本実施例では、光ディスク 100は、ディスク状 の透明基板 106の下側にぉ 、て、情報記録面を構成する色素型又は相変化型の記 録層 107が積層され、更にその下側に、反射層 108が積層されている。記録層 107 の表面力 なる情報記録面には、グルーブトラック GT及びランドトラック LTが交互に 形成されている。尚、光ディスク 100の記録及び再生時には、例えば図 2に示したよう に、透明基板 106を介してグルーブトラック GT上に、レーザ光 LBが照射される。例 えば、記録時には、記録レーザパワーでレーザ光 LBが照射されることで、記録デー タに応じて、記録層 107へ記録が実施される。他方、再生時には、記録レーザパワー よりも弱い再生レーザパワーでレーザ光 LBが照射されることで、記録層 107へ記録 された記録データの読出しが実施される。尚、グルーブトラック GT、ランドトラック LT 、ゥォブル 109、及び、ランドプリピット LPP等については後述に詳細に説明される。 In more detail, as shown in FIG. 2, in this embodiment, the optical disc 100 is located below the disc-shaped transparent substrate 106, and thus the dye type or phase change constituting the information recording surface. A recording layer 107 of a mold is laminated, and a reflective layer 108 is further laminated on the lower side. Groove track GT and land track LT alternate on the information recording surface, which is the surface force of the recording layer 107. Is formed. Incidentally, at the time of recording and reproduction of the optical disc 100, the laser beam LB is irradiated onto the groove track GT through the transparent substrate 106 as shown in FIG. For example, at the time of recording, recording is performed on the recording layer 107 according to the recording data by irradiating the laser beam LB with the recording laser power. On the other hand, at the time of reproduction, the recording data recorded on the recording layer 107 is read by irradiating the laser beam LB with a reproduction laser power weaker than the recording laser power. The groove track GT, land track LT, wobble 109, land pre-pit LPP, etc. will be described in detail later.
[0083] 特に、データエリア 102には、例えば CSS等の暗号化システムに基づいたタイトル キー等の暗号化情報と、このタイトルキー等の暗号ィ匕情報によって暗号ィ匕された暗 号ィ匕コンテンツが記録される。より具体的には、タイトルキー等の暗号ィ匕情報は、ディ スクキーや、ディスクキーセット等の暗号ィ匕情報によって暗号ィ匕されている。  [0083] In particular, in the data area 102, for example, encryption information such as a title key based on an encryption system such as CSS, and encryption key content encrypted with the encryption key information such as the title key. Is recorded. More specifically, encryption key information such as a title key is encrypted with encryption key information such as a disk key or a disk key set.
[0084] 尚、本発明は、このような 5つのエリアを有する光ディスクには特に限定されない。  Note that the present invention is not particularly limited to an optical disc having such five areas.
例えば、リードインエリア 101、又はリードアウトエリア 103が存在せずとも、以下に説 明するデータ構造等の構築は可能である。また、リードインエリア 101又はリードァゥ ト 103は更に細分ィ匕された構成であってもよい。  For example, even if the lead-in area 101 or the lead-out area 103 does not exist, the data structure described below can be constructed. Further, the lead-in area 101 or the lead-out 103 may be further subdivided.
[0085] (1 - 2)光ディスクの記録領域の位置を特定可能なアドレス  [0085] (1-2) Address that can specify the position of the recording area of the optical disc
次に、図 3を参照して、光ディスクの記録領域と、当該記録領域の位置を特定可能 なアドレスとの関係について説明する。ここに、図 3は、本発明の情報記録媒体の実 施例に係る光ディスクの記録領域と、当該記録領域の位置を特定可能なアドレスとの 関係を示した概念的グラフである。尚、図 3中の縦軸は、例えばセクタ番号やランドプ リピットアドレス等のアドレスの値を示し、横軸は、光ディスクの半径方向の相対的な 位置を示す。また、本願発明に係る「アドレス」の一具体例力 例えば、 LBN (Logical Block Number)、例えば ECCブロックを構成する物理的セクタ番号（セクタ番号）、又 はランドプリピットアドレス（Land Pre Pit Address)によって構成されている。  Next, with reference to FIG. 3, the relationship between the recording area of the optical disc and the address at which the position of the recording area can be specified will be described. FIG. 3 is a conceptual graph showing the relationship between the recording area of the optical disc according to the embodiment of the information recording medium of the present invention and the address at which the position of the recording area can be specified. Note that the vertical axis in FIG. 3 indicates address values such as sector numbers and land pre-pit addresses, for example, and the horizontal axis indicates the relative position in the radial direction of the optical disk. In addition, one specific example of “address” according to the present invention, for example, LBN (Logical Block Number), for example, physical sector number (sector number) constituting an ECC block, or land pre-pit address (Land Pre Pit Address) It is constituted by.
[0086] 図 3に示されるように、本発明の情報記録媒体の実施例に係る光ディスク 100の記 録領域は、内周側力 外周側にかけて、前述したように (i)パワーキャリブレーション エリア PCA、（ii)レコーディングマネージメントエリア（Recording Management Area)R MA、（iii)コントロールデータゾーン（Control Data Zone) CDZを有するリードインェ リア 101、（iv)データエリア 102、（v)リードアウトエリア 103を備えて構成されている。 尚、 RMAや、 CDZには、各種の属性管理情報が記録されるようにしてもよい。ここに 、属性管理情報とは、（ii—1)例えば最適記録パワー等の記録特性に関する情報、（ ii- 2)媒体の種類を特定するための属性情報、及び (ii 3)各種の記録領域の位置 を特定するための情報等の、当該情報記録媒体を管理するための各種の情報であ る。 [0086] As shown in FIG. 3, the recording area of the optical disc 100 according to the embodiment of the information recording medium of the present invention is as described above. (I) Power calibration area PCA , (Ii) Recording Management Area RMA, (iii) Control Data Zone Lead-in with CDZ A rear 101, (iv) a data area 102, and (v) a lead-out area 103 are provided. Various attribute management information may be recorded in the RMA or CDZ. Here, the attribute management information includes (ii-1) information on recording characteristics such as optimum recording power, (ii-2) attribute information for specifying the type of medium, and (ii 3) various recording areas. Various information for managing the information recording medium, such as information for identifying the location of the information.
[0087] また、図 3に示されるように、上述した光ディスク 100の記録領域の位置を一義的に 特定可能なアドレス力 例えば、 LBAや物理的セクタ番号 (セクタ番号)である場合、 光ピックアップ力 内周側力も外周側へ移動するにつれて光ディスク 100の記録領域 におけるアドレスは増加して 、くようにしてもょ 、（図 3中の太実線を参照)。或いは、 記録領域の位置を一義的に特定可能なアドレスが、例えば、ランドプリピットアドレス（ Land Pre Pit Address)である場合、後述される情報記録再生装置の光ピックアップが 、内周側力も外周側へ移動するにつれて光ディスク 100の記録領域におけるアドレス は減少して 、くようにしてもよ!ヽ（図 3中の細点線を参照)。  Also, as shown in FIG. 3, the address power that can uniquely identify the position of the recording area of the optical disc 100 described above, for example, when the LBA or physical sector number (sector number) is used, the optical pick-up power As the inner peripheral force moves to the outer peripheral side, the address in the recording area of the optical disc 100 increases, and may be reduced (see the thick solid line in FIG. 3). Alternatively, when the address where the position of the recording area can be uniquely specified is, for example, a land pre-pit address, the optical pickup of the information recording / reproducing apparatus described later has an inner peripheral force on the outer peripheral side. As you move to, the address in the recording area of the optical disc 100 will decrease, and you may try again!
[0088] (1 - 3)クロック情報、及びアドレス情報  [0088] (1-3) Clock information and address information
次に、図 4に加えて前述した図 2を適宜参照して、本発明の情報記録媒体の実施 例に係る光ディスクにおいてグルーブトラックのゥォブリング力 得られる記録時に必 要なクロック情報 (記録クロック)及びアドレス情報 (記録アドレス）につ 、て説明する。 ここに、図 4は、本発明の情報記録媒体の実施例に係る光ディスクにおいてグループ トラックのゥォブリング力 得られる記録時に必要なクロック情報及びアドレス情報を示 した図式的な一及び他の概念図（図 4 (a)から図 4 (d) )である。  Next, referring to FIG. 2 described above in addition to FIG. 4 as appropriate, clock information (recording clock) necessary for recording which can obtain a groove track wobbling force in the optical disc according to the embodiment of the information recording medium of the present invention and Address information (recording address) will be explained. FIG. 4 is a schematic diagram and other conceptual diagrams showing clock information and address information necessary for recording that can be obtained in the wobbling force of the group track in the optical disc according to the embodiment of the information recording medium of the present invention (FIG. 4). Figure 4 (a) to Figure 4 (d)).
[0089] 図 4 (a)、（b)及び (c)に示すように、本実施例に係る光ディスクにおいては、グルー ブトラック GTは、一定の振幅及び空間周波数で揺動されている。即ち、グループトラ ック GTは、ゥォブリング（Wobbling)されており、そのゥォブル (Wobble) 109の周期は 所定値に設定されている。尚、グルーブトラック GTのゥォブル 109を周波数変調や 位相変調など所定の変調方式により変調することによりプリフォーマットアドレス情報 を予め記録するようにしてもょ 、。  As shown in FIGS. 4 (a), (b) and (c), in the optical disk according to the present embodiment, the groove track GT is oscillated with a constant amplitude and a spatial frequency. That is, the group track GT is wobbling, and the period of the wobble 109 is set to a predetermined value. The preformat address information may be recorded in advance by modulating the wobble 109 of the groove track GT by a predetermined modulation method such as frequency modulation or phase modulation.
[0090] 図 4 (b)に示すように、 CD— RZWの場合では、微妙な周波数の変化によって、光 ディスク上の記録アドレスが ATIP (Absolute Time In Pre-groove)信号と呼ばれる絶 対時間情報として組み込まれて 、る。 [0090] As shown in Fig. 4 (b), in the case of CD-RZW, light is subtracted by a subtle frequency change. The recorded address on the disc is incorporated as absolute time information called an ATIP (Absolute Time In Pre-groove) signal.
[0091] 図 4 (c)に示すように、 DVD—RZWの場合では、ランドトラック LT上にはプリフォ 一マットアドレス情報を示すランドプリピット LPPと呼ばれるアドレスピットが形成されて いる。 As shown in FIG. 4 (c), in the case of DVD-RZW, address pits called land prepits LPP indicating preformat address information are formed on the land track LT.
[0092] 以上説明した 2種類のアドレッシング、即ち、ゥォブル 109並びに ATIP又はランド プリピット LPPにより記録中のディスク回転制御や記録クロックの生成、また記録アド レス等のデータの記録に必要な情報を得ることができる。より具体的には、例えば、 ディスクドライブ等の情報記録装置が、データエリアに書き込むためには、例えば、レ 一ザ光の最適記録パワーや記録ストラテジー等の記録パラメータにカ卩えて、書き込 みに使用する記録クロックと記録アドレスが必要である。  [0092] The two types of addressing described above, ie, wobble 109 and ATIP or land pre-pit LPP, obtain information necessary for recording data such as disk rotation control during recording, recording clock generation, and recording address. Can do. More specifically, for example, in order for an information recording device such as a disk drive to write in the data area, for example, the writing is performed in consideration of the recording parameters such as the optimum recording power of the laser light and the recording strategy. The recording clock and recording address used for the recording are required.
[0093] 次に、図 5を参照して、本発明の情報記録媒体の実施例に係る光ディスクの第 1記 録エリアの物理的構造の一及び他の具体例について説明する。ここに、図 5は、本発 明の情報記録媒体の実施例に係る光ディスクの第 1記録エリアの物理的構造の一及 び他の具体例における第 1記録エリア力 得られるゥォブル信号を示した図式的一 及び他の概念図（図 5 (a)から図 5 (d) )である。 Next, with reference to FIG. 5, one and other specific examples of the physical structure of the first recording area of the optical disc according to the embodiment of the information recording medium of the present invention will be described. FIG. 5 shows one example of the physical structure of the first recording area of the optical disc according to the embodiment of the information recording medium of the present invention and the wobble signal obtained in the first recording area force in another specific example. It is a schematic diagram and other conceptual diagrams (Fig. 5 (a) to Fig. 5 (d)).
[0094] 本発明の情報記録媒体の実施例に係る光ディスクの一の具体例においては、第 1 記録エリアから、図 5 (a)に示されるようなゥォブル信号 WB1が得られるように、第 1記 録エリアを構成してもよい。より具体的には、記録トラックの方向を基準として、第 1記 録エリアの前方においては、ゥォブルの振幅を小さくさせ、 AM (Amplitude Modulatio n)させる。他方、第 1記録エリアの後方においては、ゥォブルの振幅を大きくさせ、 A Mさせる。特に、振幅が減少し始める時及び増加し始める時の変化は徐々に行って もよい。応答が滑らかであるので、 Wobble検出回路の収束が早くなる。より詳細には 、後述される情報記録再生装置におけるコンパレータは、バンドパスフィルタからのゥ ォブル信号を検出することができなくなる。  In one specific example of the optical disc according to the embodiment of the information recording medium of the present invention, the first wobble signal WB1 as shown in FIG. 5 (a) is obtained from the first recording area. A recording area may be configured. More specifically, with the direction of the recording track as a reference, the amplitude of the wobble is decreased and AM (Amplitude Modulation) in front of the first recording area. On the other hand, after the first recording area, the amplitude of the wobble is increased to AM. In particular, the change when the amplitude begins to decrease and when it begins to increase may be made gradually. Since the response is smooth, the Wobble detection circuit converges faster. More specifically, the comparator in the information recording / reproducing apparatus described later cannot detect the wobble signal from the bandpass filter.
[0095] 本発明の情報記録媒体の実施例に係る光ディスクの他の具体例においては、第 1 記録エリアから、図 5 (b)に示されるようなゥォブル信号 WB2が得られるように、第 1記 録エリアを構成してもよい。より具体的には、第 1記録エリアの全ての領域において、 ゥォブルを殆ど又は完全に無くすように構成し、ゥォブル信号 WB2を得られないよう に構成してもよい。但し、製造工程においてより高度な制御が必要となる。この具体 例においても、前述の具体例と同様に情報記録再生装置におけるコンパレータは、 バンドパスフィルタからのゥォブル信号を検出することができなくなる。 In another specific example of the optical disc according to the embodiment of the information recording medium of the present invention, the first wobble signal WB2 as shown in FIG. 5 (b) is obtained from the first recording area. A recording area may be configured. More specifically, in all areas of the first recording area, It may be configured such that the wobble is almost or completely eliminated and the wobble signal WB2 is not obtained. However, more advanced control is required in the manufacturing process. In this specific example as well, the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter, as in the above specific example.
[0096] 本発明の情報記録媒体の実施例に係る光ディスクの他の具体例においては、第 1 記録エリアから、図 5 (c)に示されるようなゥォブル信号 WB3が得られるように、第 1記 録エリアを構成してもよい。 In another specific example of the optical disc according to the embodiment of the information recording medium of the present invention, the first wobble signal WB3 as shown in FIG. 5 (c) is obtained from the first recording area. A recording area may be configured.
[0097] より具体的には、第 1記録エリアの全ての領域において、ゥォブルの周波数を、例え ば、 ΙΚΗζから ΙΟΚΗζへと変調させ、 FM (Frequency Modulation)させるように構成 してもよい。尚、 FMにおいては、周波数を 2倍、 5倍等に増加させてもよいし、 1/2 倍、 1Z5倍等と減少させてもよい。この具体例においても、前述の具体例と同様に情 報記録再生装置におけるコンパレータは、バンドパスフィルタからのゥォブル信号を 検出することができなくなる。  More specifically, in all the areas of the first recording area, the wobble frequency may be modulated from FMζ to ΙΟΚΗζ and FM (Frequency Modulation), for example. In FM, the frequency may be increased to 2 times, 5 times, etc., or may be reduced to 1/2 times, 1Z5 times, etc. In this specific example as well, the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter in the same way as the above specific example.
[0098] 本発明の情報記録媒体の実施例に係る光ディスクの他の具体例においては、第 1 記録エリアから、図 5 (d)に示されるようなゥォブル信号 WB4が得られるように、第 1記 録エリアを構成してもよい。  In another specific example of the optical disk according to the embodiment of the information recording medium of the present invention, the first wobble signal WB4 as shown in FIG. 5 (d) is obtained from the first recording area. A recording area may be configured.
[0099] より具体的には、第 1記録エリアにおいて、ゥォブルの周波数、振幅、及び、位相の うち少なくとも一つが変調されるように構成してもよい。この具体例においても、前述 の具体例と同様に情報記録再生装置におけるコンパレータは、バンドパスフィルタか らのゥォブル信号を検出することができなくなる。  More specifically, in the first recording area, at least one of the wobble frequency, amplitude and phase may be modulated. In this specific example as well, the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the band pass filter, as in the above specific example.
[0100] 本発明の情報記録媒体の実施例に係る光ディスクの他の具体例においては、図示 しないが、第 1記録エリアにおいては、グルーブトラック等の記録トラック自体を予め 形成しないように構成してもよい。この具体例においても、前述の具体例と同様に情 報記録再生装置におけるコンパレータは、バンドパスフィルタからのゥォブル信号を 検出することができなくなる。  [0100] In another specific example of the optical disc according to the embodiment of the information recording medium of the present invention, although not shown, a recording track such as a groove track itself is not formed in advance in the first recording area. Also good. In this specific example as well, the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter in the same way as the above specific example.
[0101] 以上より、第 1記録エリアにおいては、一般の情報記録装置によって、ゥォブルから の信号に基づいて、正確な記録クロック及び記録アドレスが取得されないので、第 1 記録エリアにプリ記録されている、暗号化情報や、ファイルシステムを、違法な意図し ない情報によって上書きすること、及び、意図しない情報へ改ざんすることは殆ど又 は完全にできなくなる。 [0101] As described above, in the first recording area, since a general information recording device cannot obtain an accurate recording clock and recording address based on a signal from the wobble, it is pre-recorded in the first recording area. Encrypted information and file systems are illegally intended Overwriting with missing information and tampering with unintended information is almost or completely impossible.
[0102] (1 4)詳細構成 (管理情報、第 1記録エリア、及び第 2記録エリア）  [0102] (1 4) Detailed configuration (Management information, 1st recording area, 2nd recording area)
次に、図 6を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2記 録エリア」を中心とした、一の詳細構成について説明する。ここに、図 6は、本発明の 管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの一具体例 であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録エリアの一 具体例であるゥォブル (Wobble)有り区間の記録領域との配置関係を概念的に示す 模式図である。 Next, with reference to FIG. 6, one detailed configuration centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. FIG. 6 shows a file system that is a specific example of the management information of the present invention, a recording area of a wobble-free section that is a specific example of the first recording area of the present invention, and a first example of the present invention. 2 is a schematic diagram conceptually showing an arrangement relationship with a recording area in a wobbled section as a specific example of two recording areas. FIG.
[0103] 図 6に示されるように、本発明の情報記録媒体は、記録領域の内周側から外周側 に向かって、 1番目のゥォブル有り区間、ゥォブル無し区間、及び、 2番目のゥォブル 有り区間を備えて構成されている。特に、 1番目のゥォブル有り区間内における外周 領域にお 、て、本発明の管理情報の一具体例であるファイルシステム FSlaが配置 可能とされている。ここに、本実施例における「外周領域」とは、対象となる記録領域 の内部において、外側付近に存在する記録領域を意味する。このファイルシステム F S laが配置可能な記録領域の開始点は、例えば物理的なセクタ一番号が「30000h」 である位置情報、或いは、例えば LSN (Logical Sector Number)力「0」である位置情 報によって、特定可能であるようにしてもよい。尚、この wobbleなし領域の開始点の半 径位置は、例えば「24 (mm)」としてもよい。この場合 FS laの開始点は少なくとも 24 mm未満ということになる。  [0103] As shown in FIG. 6, the information recording medium of the present invention has a first wobbled section, a non-wobbled section, and a second wobble from the inner peripheral side to the outer peripheral side of the recording area. It is configured with sections. In particular, the file system FSla, which is a specific example of the management information of the present invention, can be arranged in the outer peripheral area in the first wobbled section. Here, the “outer peripheral area” in the present embodiment means a recording area that exists near the outside in the target recording area. The starting point of the recording area where this file system FS la can be placed is, for example, position information where the physical sector number is “30000h”, or position information where the LSN (Logical Sector Number) force is “0”, for example. May be specified. The radius position of the starting point of the wobble-free region may be “24 (mm)”, for example. In this case, the starting point of FS la is at least less than 24 mm.
[0104] 仮に、このファイルシステム FSlaが、ゥォブル有り区間において配置可能としなぐ 例えばゥォブル無し区間にプリ記録される場合、記録開始位置が固定されている IS O9660を含む UDFブリッジ規格に基づいたファイルシステムを追記録や書き換え記 録ができないために、コンテンツ等の記録情報のデータ量や記録位置が固定されて しまうという技術的な問題点が生じてしまう。  [0104] If this file system FSla cannot be placed in a wobbled section, for example, if it is pre-recorded in a section without wobble, the file system based on the UDF bridge standard including IS O9660 where the recording start position is fixed Since additional recording or rewriting recording cannot be performed, a technical problem arises that the data amount and recording position of recording information such as contents are fixed.
[0105] これに対して、本実施例によれば、ファイルシステム FSlaが、ゥォブル等の制御情 報がプリフォーマットされた第 2記録エリアにおいて配置可能である。従って、例えば ユーザによってゥォブル有り区間において、ファイルシステム FSlaを、時間的に後か ら拡張的に記録することが可能である。 On the other hand, according to the present embodiment, the file system FSla can be arranged in the second recording area in which control information such as wobble is preformatted. Therefore, for example, in a section with wobble by the user, the file system FSla Can be expanded.
[0106] この結果、ファイルシステム FSla、又は記録情報を、例えばユーザによる記録処理 によって、例えばフアイナライズ処理の際などのように時間的に後から拡張的に記録 することが可能である。具体的には、例えば DVDコンテンツ等の記録情報がネットヮ ークを介して電子配信されて一般的な情報記録装置にて追記録される場合、当該情 報記録装置においてファイルシステム等の管理情報の追記録や書き換え記録が行 われるので、ファイルシステム FS laをゥォブル有り区間に拡張的に記録可能である。  As a result, the file system FSla or the recording information can be recorded in an extended manner later in time, for example, in the finalizing process, for example, by the recording process by the user. Specifically, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device, management information such as a file system is stored in the information recording device. Since additional recording and rewriting recording are performed, the file system FS la can be expanded and recorded in a wobbled section.
[0107] 以上の結果、本実施例によれば、例えば UDFブリッジ規格に基づ 、たファイルシ ステム等の管理情報の種類、又は、例えば電子配信されるコンテンツ等の記録情報 の記録手順の形態等の各種の記録手法に、より適切に対応することを実現可能であ る。  As a result of the above, according to the present embodiment, for example, based on the UDF bridge standard, the type of management information such as a file system, or the form of a recording procedure for recording information such as content distributed electronically, for example It is feasible to respond more appropriately to various recording methods.
[0108] (1 5)他の詳細構成  [0108] (1 5) Other detailed configurations
次に、図 7から図 10を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及 び「第 2記録エリア」を中心とした他の詳細構成について説明する。  Next, with reference to FIGS. 7 to 10, another detailed configuration centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described.
[0109] (1 5— 1)他の詳細構成 その 1 [0109] (1 5— 1) Other detailed configuration 1
次に、図 7を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2記 録エリア」を中心とした他の詳細構成 (その 1)について説明する。ここに、図 7は、本 発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの一 具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録エリ ァのー具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 1)である。尚、前述した一の詳細構成と、概ね同様の構成には、同様 の符号番号を付し、それらの説明は適宜省略する。  Next, with reference to FIG. 7, another detailed configuration (part 1) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. FIG. 7 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. 2 is another schematic diagram (part 1) conceptually showing the arrangement relationship between the recording area of the wobbled section as a specific example of the two recording areas. FIG. In addition, the same code | symbol is attached | subjected to the one detailed structure mentioned above, and a structure substantially the same, and those description is abbreviate | omitted suitably.
[0110] 図 7に示されるように、他の詳細構成 (その 1)においては、特に、ゥォブル無し区間 の、例えば開始点から、例えばディスクキー等の暗号ィヒ情報等を含む所定のデータ が予めプリ記録されている。  [0110] As shown in FIG. 7, in the other detailed configuration (part 1), in particular, predetermined data including, for example, encryption key information such as a disk key, etc. from the start point of the wobbleless section is stored. Pre-recorded in advance.
[0111] この結果、第 1番目の効果として、一般の情報記録再生装置は、例えばディスクキ 一等の所定のデータがプリ記録されて 、るゥォブル無し区間の記録領域にぉ 、ては 、クロック情報としてゥォブル信号を検出することができない。従って、一般の情報記 録再生装置は、例えば DVD— ROM等の再生専用の情報記録媒体と区別すること なぐ当該再生専用の情報記録媒体と概ね同様に、本発明の情報記録媒体に対し て、再生専用の情報記録媒体に対応したアプリケーション等の前述した特別プロダラ ムを実行することが可能である。尚、この特別プログラムは、ゥォブル無し区間の記録 領域にお 、てプリ記録されてもょ 、し、ゥォブル無し区間以外の記録領域にお！ヽて 記録されるようにしてちょい。 As a result, as a first effect, a general information recording / reproducing apparatus, for example, is pre-recorded with predetermined data such as a disc key, so that the clock is not recorded in the recording area of the section without wobble. A wobble signal cannot be detected as information. Therefore, general information The recording / reproducing apparatus is not distinguished from a reproduction-only information recording medium such as a DVD-ROM, for example, and generally similar to the reproduction-only information recording medium. It is possible to execute the above-mentioned special program such as an application corresponding to. This special program may be pre-recorded in the recording area of the non-wobbled section and recorded in the recording area other than the non-wobbled section! Make sure it is recorded.
[0112] 他方で、一般の情報記録再生装置は、ゥォブル無し区間の記録領域において、ク ロック情報としてゥォブル信号を検出することができな 、ので、ゥォブル無し区間の記 録領域にプリ記録されている暗号ィ匕情報等の所定のデータを書き換えることは不可 能である。従って、当該情報記録媒体の著作権保護を実現することが可能である。 尚、ゥォブル有り区間の記録領域においては、前述したクロック情報としてゥォブル信 号を検出することが可能であるので、一般の記録処理を行うことが可能である。  [0112] On the other hand, a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a recording area in a no-wobble section, so it is pre-recorded in a recording area in a no-wobble section. It is impossible to rewrite predetermined data such as encryption key information. Therefore, it is possible to realize copyright protection of the information recording medium. In the recording area of the wobbled section, the wobble signal can be detected as the clock information described above, so that general recording processing can be performed.
[0113] 第 2番目の効果として、例えば、記録情報を再生する際に、最初にアクセスされ、記 録情報の再生が許可される力否かが判定されるための判定領域 (所謂、再生設定領 域)が、ゥォブル無し区間の記録領域に含まれる場合、次のような効果を享受すること が可能である。即ち、ゥォブル無し区間の記録領域にゥォブルはプリフォーマットされ ていないので、従来の再生機 (一般の情報記録再生装置）は、当該ゥォブルを検出 できないので、一般の情報記録再生装置は、少なくとも判定領域における再生処理 において、本発明の情報記録媒体と、一般的な、例えば DVD— ROM等の再生専 用の情報記録媒体とを区別することができない。この結果、従来の再生機は、一般的 な再生専用の情報記録媒体と同様に、本発明の情報記録媒体に対して、再生処理 を行うことが可能である。  [0113] As a second effect, for example, when playing back recorded information, a determination area (so-called playback setting) for determining whether or not power to permit playback of recorded information is first accessed. If the area is included in the recording area of the wobble-free section, it is possible to enjoy the following effects. That is, since the wobble is not preformatted in the recording area of the no-wobble section, the conventional player (general information recording / reproducing apparatus) cannot detect the wobble. Therefore, the general information recording / reproducing apparatus has at least the determination area. In the reproduction processing in the above, it is impossible to distinguish between the information recording medium of the present invention and a general information recording medium dedicated to reproduction such as a DVD-ROM. As a result, the conventional reproducing apparatus can perform the reproducing process on the information recording medium of the present invention in the same manner as a general reproduction-only information recording medium.
[0114] 以上の結果、例えば CSS等の暗号ィ匕システムによって、著作権が保護されたコン テンッを、記録型の情報記録媒体によって、一般のユーザに供給し、供給されたコン テンッを、従来の再生機によって再生処理を行わせることが可能となる。従って、本 発明の情報記録媒体によれば、コンテンツの著作権の保護と、再生互換性の維持と の両立を実現することが可能となる。  [0114] As a result of the above, for example, content protected by copyright using a cryptographic system such as CSS is supplied to a general user using a recording-type information recording medium. It becomes possible to perform the reproduction process by the reproduction apparatus. Therefore, according to the information recording medium of the present invention, it is possible to realize both the protection of the copyright of the content and the maintenance of reproduction compatibility.
[0115] 第 3番目の効果として、所定のデータがプリ記録されているゥォブル無し区間の記 録領域の記録領域が、更に、例えばユーザによって記録情報を記録可能なユーザ データエリアに含まれる場合、次のような効果を享受することが可能である。即ち、従 来の再生機 (一般の情報記録再生装置）は、例えば DVDコンテンツのタイトル情報 が記録されて 、るゥォブル無し区間の記録領域にぉ 、ては、クロック情報としてゥォ ブル信号を検出することができない。従って、一般の情報記録再生装置は、例えば D VD ROM等の再生専用の情報記録媒体と区別することなく、当該再生専用の情 報記録媒体と概ね同様に、本発明の情報記録媒体に対して、前述した、再生再開処 理（レジューム処理： Resume Operation)を行うことが可能である。 [0115] As the third effect, the description of the no-wobble section where the predetermined data is pre-recorded. When the recording area of the recording area is further included in a user data area where recording information can be recorded by the user, for example, the following effects can be obtained. That is, a conventional player (general information recording / reproducing device) detects, for example, a wobble signal as clock information in a recording area of a section without a wobble where title information of a DVD content is recorded. Can not do it. Therefore, a general information recording / reproducing apparatus does not distinguish from a reproduction-only information recording medium such as a DVD ROM, for example, and generally corresponds to the information-recording medium of the present invention. It is possible to perform the above-mentioned reproduction restart processing (resume operation).
[0116] 具体的には、この情報再生装置は、先ず (一)再生途中で当該情報記録媒体が取 り出された瞬間に再生していた、記録情報の再生位置を示すアドレス、（二）当該情 報記録媒体にお!、て再生されて!、た記録情報のタイトル情報、又は (三)ユーザーデ 一タエリアの先頭部分に存在する所定の位置を示すデータ列等の、再生途中の記 録情報を特定可能な特定情報を、例えば内部メモリ等の記憶手段にお!、て記憶する 。次に、情報再生装置は、再度、情報記録媒体が挿入された場合に、例えばタイトル 情報等の特定情報が記録されて 、る領域にぉ 、て、 (i)クロック情報としてゥォブル 信号が検出されるか否か、又は、（ii)特定情報を再生可能である力否か、などを判定 する。次に、情報再生装置は、（i)特定情報が記録されている領域においてクロック 情報としてゥォブル信号が検出されな 、場合、又は (ii)例えばタイトル情報等の特定 情報を再生可能である場合、記憶されて ヽる記録情報の再生位置を示すアドレスの 近傍から、再生を再開することが可能である。 [0116] Specifically, the information reproducing apparatus first (1) an address indicating the reproduction position of the recorded information that was reproduced at the moment when the information recording medium was taken out during reproduction; (2) Recorded in the middle of playback such as title information of recorded information, or (3) a data string indicating a predetermined position existing at the beginning of the user data area. Specific information that can specify recording information is stored in a storage means such as an internal memory. Next, when the information recording medium is inserted again, the information reproducing apparatus records, for example, specific information such as title information, and (i) a wobble signal is detected as clock information. Whether or not (ii) the ability to reproduce the specific information. Next, the information reproducing apparatus (i) when a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) when specific information such as title information can be reproduced, Playback can be resumed from the vicinity of the address indicating the playback position of the recorded information that is stored.
[0117] (1 5— 2)他の詳細構成 その 2—  [0117] (1 5— 2) Other detailed configuration 2—
次に、図 8を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2記 録エリア」を中心とした他の詳細構成 (その 2)について説明する。ここに、図 8は、本 発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの一 具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録エリ ァのー具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 2)である。  Next, with reference to FIG. 8, another detailed configuration (part 2) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. FIG. 8 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. FIG. 2B is another schematic diagram (part 2) conceptually showing an arrangement relationship with a recording area of a wobbled section as a specific example of the two recording areas.
[0118] 図 8に示されるように、他の詳細構成（その 2)においては、 1番目のゥォブル有り区 間の、例えば外周領域において、本発明の管理情報の一具体例であるファイルシス テム FSlaが配置可能とされている。特に、ファイルシステム FS laは、例えばファイル システムを識別する識別情報等の拡張性の低 、性質を保持する情報であるようにし てもよい。加えて、ファイルシステム FSlaは、後述されるゥォブル有り区間の記録領 域におけるファイルシステム FSlbが記録される位置に関する位置情報を含む（図 8 中の矢印を参照)。 [0118] As shown in Fig. 8, in the other detailed configuration (part 2), the first wobbled section For example, a file system FSla, which is a specific example of the management information of the present invention, can be arranged in the outer peripheral area. In particular, the file system FS la may be information that retains its low-scaling nature, such as identification information for identifying the file system. In addition, the file system FSla includes position information about the position where the file system FSlb is recorded in the wobbled recording area described later (see the arrow in FIG. 8).
[0119] 他方、 2番目のゥォブル有り区間の記録領域において、ファイルシステム FSlbが、 例えばユーザによって時間的に後から、記録可能である。特に、ファイルシステム FS lbは、拡張性の高い情報、即ち、例えば、ディレクトリ構造やファイル構造やアンカー ポイント等の、記録情報を記録又は再生する際の論理階層に関する情報であるよう にしてもよい。  On the other hand, in the recording area of the second wobbled section, the file system FSlb can be recorded later, for example, by the user. In particular, the file system FS lb may be information with high expandability, that is, information related to a logical hierarchy when recording information is recorded or reproduced, such as a directory structure, a file structure, or an anchor point.
[0120] このように図 8では、ファイルシステム FSlaを、ゥォブル無し区間より内周側に位置 されるゥォブル有り区間の記録領域に記録可能とする。これにカ卩えてファイルシステ ム FSlaに含まれる位置情報に基づいて、ファイルシステム FSlbを例えばゥォブル 無し区間より外周側に位置されるゥォブル有り区間の記録領域に拡張的に記録可能 とする例となっている。  Thus, in FIG. 8, the file system FSla can be recorded in the recording area of the wobbled section located on the inner circumference side of the wobbleless section. In contrast to this, based on the position information included in the file system FSla, the file system FSlb can be expanded and recorded, for example, in the recording area of the wobbled section located outside the wobbled section. ing.
[0121] この結果、ファイルシステム、又は記録情報を、例えばユーザによる記録処理によつ て、例えばフアイナライズ処理の際などのように時間的に後から拡張的に記録するこ とが可能である。具体的には、例えば DVDコンテンツ等の記録情報が例えばネットヮ ークを介して電子配信されて一般的な情報記録装置にて追記録される場合、当該情 報記録装置においてファイルシステム等の管理情報の追記録や書き換え記録が行 われる。従って、例えば UDFブリッジ規格に基づいたファイルシステム FSlaを、 1番 目のゥォブル有り区間の記録領域に拡張的に記録可能である。力！]えて、ファイルシス テム FSlaに含まれる位置情報に基づいて、ファイルシステム FSlbを、 2番目のゥォ ブル有り区間の記録領域に拡張的に記録可能である。  As a result, the file system or the recorded information can be recorded in an extended manner later in time, for example, by a recording process by the user, for example, in the finalizing process. Specifically, for example, when recording information such as DVD content is electronically distributed via a network and additionally recorded by a general information recording device, management information such as a file system is recorded in the information recording device. Additional recording or rewriting recording is performed. Therefore, for example, the file system FSla based on the UDF bridge standard can be expanded and recorded in the recording area of the first wobbled section. Power! ] Based on the position information contained in the file system FSla, the file system FSlb can be expanded and recorded in the recording area of the second wobbled section.
[0122] (1 5— 3)管理情報の記録手順の類型と、管理情報の種類との関係  [0122] (1 5— 3) Relationship between types of management information recording procedures and types of management information
次に、図 9及び図 10を参照して、本発明に係る管理情報の記録手順の類型と、管 理情報の種類と、の関係について説明する。ここに、図 9は、本発明の管理情報の一 具体例であるファイルシステムの記録手順の一及び他の類型を概念的に示す模式 図（図 9 (a)及び図 9 (b) )である。図 10は、本発明の管理情報の一具体例であるファ ィルシステムの一及び他の種類を図式的に示す模式図（図 10 (a)及び図 10 (b) )で ある。 Next, with reference to FIG. 9 and FIG. 10, the relationship between the type of management information recording procedure according to the present invention and the type of management information will be described. Here, FIG. 9 shows one example of the management information of the present invention. FIG. 9 is a schematic diagram (FIGS. 9A and 9B) conceptually showing one and other types of recording procedures of a file system as a specific example. FIG. 10 is a schematic diagram (FIG. 10 (a) and FIG. 10 (b)) schematically showing one and other types of file systems which are specific examples of the management information of the present invention.
[0123] 図 9 (a)に示されるように、ファイルシステムの記録手順の一の類型（その 1)としては 、ファイルシステムの全部 FSを、プリ記録するときに、ゥォブル無し区間の記録領域 にも、プリ記録するようにしてもよい。特に、例えば少数だけ出版される特別の出版物 などがコンテンツとして記録される場合、ファイルシステム FSの追記録や書き換え記 録が一般的には行われることがないので、ファイルシステム FSの全部がプリ記録され るのが好ましい。このファイルシステム FSの記録手順の一の類型には、例えば UDF (Universal Disk Format)や、 UDFブリッジ等のファイルシステムの記録に適している 。尚、 UDFのバージョンは、「1. 02」であってもよいし、それ以上の「1. 5」や「2. 0」 であってもよい。  [0123] As shown in Fig. 9 (a), one type of file system recording procedure (part 1) is that the entire FS of the file system is recorded in the recording area of the no-wobble section when pre-recording. Alternatively, pre-recording may be performed. In particular, for example, when a small number of special publications are recorded as content, additional recording and rewriting recording of the file system FS are not generally performed, so the entire file system FS is pre-recorded. Preferably it is recorded. One type of file system FS recording procedure is suitable for recording a file system such as UDF (Universal Disk Format) or UDF bridge. The UDF version may be “1.02” or may be “1.5” or “2.0” higher than that.
[0124] 図 9 (b)に示されるように、ファイルシステムの記録手順の他の類型（その 2)としては 、ファイルシステムの一部 FSlpおよび記録情報を、ゥォブル無し区間の記録領域に 、プリ記録するようにしてもよい。  [0124] As shown in Fig. 9 (b), as another type (part 2) of the recording procedure of the file system, part of the file system FSlp and recording information are pre-recorded in the recording area of the wobbled section. It may be recorded.
[0125] 特に、前述した他の詳細構成において説明したように、例えば DVDコンテンツ等の 記録情報が例えばネットワークを介して、電子配信され、一般的な情報記録装置に おいて追記録される場合、当該一般的な情報記録装置において、ファイルシステム 等の管理情報の追記録や書き換え記録が行われる。従って、例えば UDFブリッジ規 格に基づいたファイルシステム FSlaを、例えば内周側に位置されるゥォブル有り区 間の記録領域に FSlpを考慮した形で拡張的に記録可能である。また FSlpを使うか 否かはあと力も選択することができるので応用の幅が広がる。カロえて、ファイルシステ ム FSlaに含まれる位置情報に基づいて、ファイルシステム FS lbを、例えば外周側 に位置されるゥォブル有り区間の記録領域に拡張的に記録可能である。このファイル システムの記録手順の他の類型は、例えば UDFに加えて UDFブリッジ等のファイル システムの記録にも適して 、る。  [0125] In particular, as described in the other detailed configuration described above, for example, when recording information such as DVD content is electronically distributed via, for example, a network and additionally recorded in a general information recording device, In the general information recording device, management information such as a file system is additionally recorded or rewritten. Therefore, for example, the file system FSla based on the UDF bridge standard can be expanded and recorded in the recording area between wobbles located on the inner circumference side in consideration of FSlp. In addition, whether or not to use FSlp can be selected, so the range of applications can be expanded. Based on the position information included in the file system FSla, the file system FS lb can be expanded and recorded, for example, in the recording area of the wobbled section located on the outer peripheral side. Other types of file system recording procedures are suitable for recording file systems such as UDF bridges in addition to UDF, for example.
[0126] 特に、エンドユーザーの手元に存在するという時点における情報記録媒体につい て考察すると、次のような 2種類の記録済み状態の情報記録媒体 (例えば光ディスク )に大別されるようにしてもよい。即ち、（i)例えばコンテンツ情報が電子配信された場 合のように、ゥォブル無し区間の記録領域 (Wobbleなしの部分）に、所定のデータが プリ記録された情報記録媒体 (所謂、ブランクディスク)、及び (ii)例えば少量出版（ 即ち、少量の限られた数だけコンテンツ等の情報が記録された情報記録媒体を販売 する形態）の場合のように、ゥォブル無し区間の記録領域 (Wobbleなしの部分)及び ゥォブル有り区間の記録領域 (Wobbleありの部分）において、コンテンツ情報が記録 された記録済ディスク等の情報記録媒体である。 [0126] In particular, the information recording medium at the time when it exists at the end user's hand. In view of this, it may be roughly divided into the following two types of recorded information recording media (for example, optical discs). That is, (i) an information recording medium (so-called blank disc) in which predetermined data is pre-recorded in a recording area (a portion without wobble) of a wobbleless section, for example, when content information is distributed electronically And (ii) For example, in the case of a small amount of publication (that is, in the form of selling an information recording medium in which a limited amount of information is recorded), the recording area of the wobbleless section (without wobble) Part) and a wobbled section recording area (the part with wobble) is an information recording medium such as a recorded disc on which content information is recorded.
[0127] より詳細には、図 10 (a)に示されるように、 UDFにおいては、ファイルデータの記録 後に、記録されるファイル名や、ファイルサイズを特定可能な、例えば Volume Recogn ition Sequenceや、 AVDPや、 Volume Descriptor Sequence等によって構成される、 U DF&I¾O9660 volume structure dataは、本来、 Pre-recorded area、即ち、ゥォブ ル無し区間の記録領域において、予めプリ記録される。そして、ファイルデータの記 録後に、 ί列えば File Set Descriptorや、 Root Directory ICBや、 Root Directory fileを 、追記録や書き換え記録を行うことで、ファイル名やファイルサイズを追記録や書き換 え記録を行うことが可能である。  More specifically, as shown in FIG. 10 (a), in the UDF, after recording file data, the file name to be recorded and the file size can be specified, for example, Volume Recognition Sequence, UDF & I¾O9660 volume structure data composed of AVDP, Volume Descriptor Sequence, and the like is pre-recorded in advance in a pre-recorded area, that is, a recording area of a wobbleless section. After file data is recorded, file names and file sizes can be additionally recorded or rewritten by performing additional recording or rewriting recording, such as File Set Descriptor, Root Directory ICB, or Root Directory file. Can be done.
[0128] 他方、図 10 (b)に示されるように、 UDFブリッジにおいては、ファイルデータの記録 後に、記録されるファイル名や、ファイルサイズを特定可能な、例えば Volume Recogn ition Sequenceや、 AVDPや、 Volume Descriptor Sequence等によって構成される、 U DF&I¾O9660 volume structure dataは、本来、 Data recordable area、良！] ¾、 1ノォ ブル有り区間の記録領域にお!ヽて、追記録や書き換え記録が可能なように記録され る。よって、記録されるファイル名や、ファイルサイズを特定可能な、この UDF&ISO 9660 volume structure dataが、予めプリ記録された場合、ファイル名や、ファイルサ ィズの追記録や書き換え記録を行うことができなくなってしまう。 On the other hand, as shown in FIG. 10 (b), in the UDF bridge, after recording file data, the file name to be recorded and the file size can be specified. For example, Volume Recognition Sequence, AVDP, U DF & I¾O9660 volume structure data is essentially a data recordable area. ¾ In the recording area of the section with 1 noble, it is recorded so that additional recording and rewriting recording are possible. Therefore, if this UDF & ISO 9660 volume structure data, which can specify the file name and file size to be recorded, is pre-recorded, the file name and file size can be additionally recorded and rewritten. It will disappear.
[0129] これに対して、本実施例によれば、上述したように、例えば UDFブリッジ規格に基 づ ヽたファイルシステム FS laを、例えば内周側に位置されるゥォブル有り区間の記 録領域に拡張的に記録可能である。力 tlえて、ファイルシステム FSlaに含まれる位置 情報に基づいて、ファイルシステム FS lbを、例えば外周側に位置されるゥォブル有り 区間の記録領域に拡張的に記録可能である。 On the other hand, according to the present embodiment, as described above, for example, the file system FS la based on the UDF bridge standard is recorded in the recording area of the wobbled section located on the inner circumference side, for example. Can be recorded in an expanded manner. Based on the location information included in the file system FSla, the file system FS lb has a wobble located on the outer side, for example. Recording can be performed in an extended recording area.
[0130] 以上より、例えば UDFブリッジ等のファイルシステムの記録にお!、て、上述した!/ヽ ずれの類型 (その 1、及びその 2)を適用し、ファイルデータを記録した場合でも、ファ ィルデータ自体の拡張的な追記録や書き換え記録を行うことが可能であるので、ファ ィル名や、ファイルサイズの拡張的な記録を実現することが可能となる。  [0130] From the above, even when file data is recorded by applying the above-mentioned type of! / ヽ (part 1 and part 2) to recording a file system such as a UDF bridge, for example. Since it is possible to perform additional recording or rewriting recording of the file data itself, it is possible to realize extended recording of file names and file sizes.
[0131] (2) 配信システム  [0131] (2) Distribution system
次に、図 11、及び図 12を参照して、本発明の情報記録媒体に対して、記録動作を 行う情報記録装置、並びに、配信動作を行う情報配信装置を備えた配信システムに ついて説明する。  Next, with reference to FIG. 11 and FIG. 12, an information recording apparatus that performs a recording operation on the information recording medium of the present invention, and a distribution system that includes an information distribution apparatus that performs a distribution operation will be described. .
[0132] (2— 1)配信システムの全体構成  [0132] (2-1) Overall configuration of distribution system
先ず、図 11を参照して、本発明の情報記録媒体に対して、記録動作を行う情報記 録装置、並びに、配信動作を行う情報配信装置を備えた配信システムの全体構成に ついて説明する。ここに、図 11は、本発明の情報記録媒体に対して、記録動作を行 う情報記録装置、並びに、配信動作を行う情報配信装置を備えた配信システムの全 体構成を示したブロック図である。尚、図 11におけるステップ番号は、後述される図 1 2におけるステップ番号と対応している。また、本実施例に係る配信システムにおいて は、 DAO (Disk At Once)方式を採用してもよい。  First, an overall configuration of a distribution system including an information recording apparatus that performs a recording operation and an information distribution apparatus that performs a distribution operation on the information recording medium of the present invention will be described with reference to FIG. FIG. 11 is a block diagram showing an overall configuration of an information recording apparatus that performs a recording operation on an information recording medium of the present invention and a distribution system that includes an information distribution apparatus that performs a distribution operation. is there. Note that the step numbers in FIG. 11 correspond to the step numbers in FIG. In the distribution system according to the present embodiment, a DAO (Disk At Once) method may be adopted.
[0133] 図 11に示されるように、本実施例に係る配信システムは、（i)光ディスク 100に対し て記録動作を行う情報記録装置 200、 (ii)この情報記録装置 200に暗号化コンテン ッを配信する、例えば、ウェブサーバー等の情報配信装置 300、並びに、（iii)これら 情報記録装置 200と情報配信装置 300とが情報の授受を行うことを可能にするイン ターネット等の外部ネットワーク 400を備えて構成されている。  As shown in FIG. 11, the distribution system according to the present embodiment includes (i) an information recording device 200 that performs a recording operation on the optical disc 100, and (ii) an encrypted content in the information recording device 200. For example, an information distribution device 300 such as a web server, and (iii) an external network 400 such as the Internet that enables the information recording device 200 and the information distribution device 300 to exchange information. It is configured with.
[0134] 前述したように、光ディスク 100は、 NBCA、コントロールデータゾーン CDZ、及び、 暗号ィ匕コンテンツを記録するデータエリア 102を備えて構成されている。より詳細に は、 NBCAには、メディア IDがレーザーカッティングによって記録されている。コント ロールデータゾーン CDZには、ディスクキー等の暗号化情報 Key 1が記録されて!ヽ る。データエリア 102には、後述される情報配信装置 300によって配信された暗号ィ匕 コンテンツ等が、そのまま記録される。 [0135] 情報記録装置 200は、光ディスク 100のメディア IDを、情報配信装置 300へ送信 する。また、情報配信装置 300から受信した暗号ィ匕コンテンツを、光ディスク 100に対 して記録する。 As described above, the optical disc 100 includes the NBCA, the control data zone CDZ, and the data area 102 for recording the encrypted content. More specifically, the media ID is recorded in NBCA by laser cutting. In the control data zone CDZ, encryption information Key 1 such as a disc key is recorded! In the data area 102, the encrypted content distributed by the information distribution apparatus 300 described later is recorded as it is. The information recording device 200 transmits the media ID of the optical disc 100 to the information distribution device 300. In addition, the encrypted content received from the information distribution apparatus 300 is recorded on the optical disc 100.
[0136] 情報配信装置 300は、情報記録装置 200が送信したメディア IDを受信する。受信 したメディア IDに対応したディスクキー等の暗号ィ匕情報 Keyl、及び、タイトルキー等 の暗号ィ匕情報 Key 2を生成する。生成された暗号ィ匕情報 Key 1及び Key2に基づ ヽ て、コンテンツに対して暗号ィ匕等の暗号ィ匕処理を行う。暗号化処理が施されたコンテ ンッ、即ち、暗号ィ匕コンテンツを情報記録装置 200へ配信する。尚、暗号化コンテン ッは、外部ネットワーク 400を経由して配信されるため、暗号ィ匕における暗号化とは 別に、 SSL (Secure Socket Layer)等の盗聴や改ざん等に対応した暗号化を施しても よい。  Information distribution device 300 receives the media ID transmitted by information recording device 200. It generates encryption key information Keyl such as a disc key corresponding to the received media ID and encryption key information Key2 such as a title key. Based on the generated encryption key information Key 1 and Key 2, encryption processing such as encryption key is performed on the content. The encrypted content, that is, the encrypted content is distributed to the information recording apparatus 200. Since the encrypted content is distributed via the external network 400, encryption corresponding to eavesdropping and tampering such as SSL (Secure Socket Layer) is performed separately from encryption in the encryption network. Also good.
[0137] 外部ネットワーク 400は、情報記録装置 200と、情報配信装置 300とを、両者に備 えられた図示しない回線接続装置 (例えば、ハブ装置、デジタル終端接続装置 (DS U)、又は、侵入防止用のファイアウォールアプリケーションを実装したルータなど）を 介して、情報の授受が行えるように接続させている。  [0137] The external network 400 includes an information recording device 200 and an information distribution device 300, both of which are connected to a line connection device (not shown) (for example, a hub device, a digital termination connection device (DSU), or an intrusion). For example, a router with a firewall application for prevention).
[0138] (2— 2)情報記録装置及び情報配信装置における各種の処理  (2-2) Various processes in information recording device and information distribution device
次に、図 12に加えて前述した図 11を適宜参照して、本発明の情報記録媒体に対 して、記録動作を行う情報記録装置、及び、配信動作を行う情報配信装置を備えた 配信システムの各種の処理について説明する。尚、当該情報記録装置及び情報配 信装置における各種の処理は、前述の図 9における、ファイルシステム FS laが時間 的に後から、拡張的に追記録又は書き換え記録される類型 (その 2)に基づいて行わ れている。ここに、図 12は、本発明の情報記録装置、及び、情報配信装置における 各種の処理を示したフローチャートである。尚、図 12におけるステップ番号は、図 11 におけるステップ番号と対応して 、る。  Next, referring to FIG. 11 described above in addition to FIG. 12 as appropriate, a distribution provided with an information recording apparatus that performs a recording operation and an information distribution apparatus that performs a distribution operation on the information recording medium of the present invention. Various processes of the system will be described. The various processes in the information recording device and the information distribution device are classified into the types (part 2) in which the file system FS la in FIG. Based on. FIG. 12 is a flowchart showing various processes in the information recording apparatus and information distribution apparatus of the present invention. Note that the step numbers in FIG. 12 correspond to the step numbers in FIG.
[0139] (2— 2— 1)情報記録装置における記録処理  [0139] (2-2-1) Recording process in information recording device
先ず、図 12において、光ディスク 100が装填されると、先ず、後述される情報記録 装置の CPU (Central Processing Unit) 250の制御下で、光ピックアップ 202によりシ ーク動作が行われる（ステップ S 101)。 [0140] 次に、 CPU250の制御下で、光ディスク 100は、コンテンツが配信されるための光 ディスクであるか否かが判定される（ステップ S102)。ここで、光ディスク 100は、コン テンッが配信されるための光ディスクである場合 (ステップ S102 : Yes)、光ディスク 1 00への記録動作に必要な各種の情報が取得される (ステップ S 103)。より具体的に は、 OPC処理が行われ、最適記録パワーが決定されると共に、記録ストラテジーパタ ーンが決定される。 First, in FIG. 12, when the optical disc 100 is loaded, first, a seek operation is performed by the optical pickup 202 under the control of a CPU (Central Processing Unit) 250 of the information recording apparatus described later (step S 101). ). Next, under the control of the CPU 250, it is determined whether or not the optical disc 100 is an optical disc for content distribution (step S102). Here, when the optical disk 100 is an optical disk for delivering content (step S102: Yes), various information necessary for the recording operation on the optical disk 100 is acquired (step S103). More specifically, the OPC process is performed to determine the optimum recording power and the recording strategy pattern.
[0141] 次に、光ディスク 100には、コンテンツが記録済みであるか否かが判定される（ステ ップ S104)。ここで、光ディスク 100には、コンテンツが記録済みではない場合 (ステ ップ S104 :No)、 CPU250の制御下で、光ディスク 100上の、例えば、 NBCA(Narr ow Burst Cutting Area)から、当該光ディスク 100に固有のメディア IDが取得される（ ステップ S 105)。  [0141] Next, it is determined whether or not content has been recorded on the optical disc 100 (step S104). Here, when content has not been recorded on the optical disc 100 (step S104: No), the optical disc 100 is controlled from the optical disc 100 under the control of the CPU 250, for example, from the NBCA (Narrow Burst Cutting Area). A unique media ID is obtained (step S105).
[0142] 次に、 CPU250の制御下で、取得されたメディア IDが SSL等に基づいて暗号化さ れ、例えば、ネッワーク上のサーバー等の情報配信装置 300へ送信される (ステップ S106)。  [0142] Next, under the control of the CPU 250, the acquired media ID is encrypted based on SSL or the like, and transmitted to the information distribution apparatus 300 such as a server on the network, for example (step S106).
[0143] 他方、ステップ S102の判定の結果、コンテンツが配信されるための光ディスクでな いと判定された場合 (ステップ S 102 : No)、及び、ステップ S 104の判定の結果、光 ディスク 100には、コンテンッが記録済みではあると判定された場合 (ステップ S 104： Yes)、光ディスク 100は、情報記録装置 200から排出される。  [0143] On the other hand, if it is determined in step S102 that the content is not an optical disc to be distributed (step S102: No), and if the result of determination in step S104 is optical disc 100, If it is determined that the content has been recorded (step S104: Yes), the optical disc 100 is ejected from the information recording apparatus 200.
[0144] (2— 2— 2)情報配信装置における配信処理  (2— 2— 2) Distribution processing in information distribution device
情報配信装置 300では、先ず、 SSL等によって暗号ィ匕されたメディア IDを受信す る（ステップ S 201)。  Information distribution apparatus 300 first receives a media ID encrypted by SSL or the like (step S 201).
[0145] 次に、情報配信装置 300では、受信した SSL等によって暗号ィ匕されたメディア IDを 復号化する (ステップ S 202)。  Next, the information distribution apparatus 300 decrypts the received media ID encrypted by SSL or the like (step S 202).
[0146] 次に、情報配信装置 300では、復号化したメディア IDに対応するディスクキー等の 暗号化情報 Keyl、及び、タイトルキー等の暗号ィ匕情報 Key2が生成される (ステップ[0146] Next, in the information distribution apparatus 300, encryption information Keyl such as a disc key corresponding to the decrypted media ID and encryption key information Key2 such as a title key are generated (step)
S203)。 S203).
[0147] 次に、情報配信装置 300では、生成された暗号ィ匕情報 Key 1及び Key2によって配 信するコンテンツ及びファイルシステムが所定の暗号ィ匕システムによって暗号ィ匕され る（ステップ S 204)。 [0147] Next, in the information distribution apparatus 300, the content and file system distributed using the generated encryption key information Key 1 and Key 2 are encrypted by a predetermined encryption system. (Step S204).
[0148] 次に、情報配信装置 300では、この生成された暗号ィ匕情報 Key 1及び Key2によつ て暗号化システムに基づいて暗号化された暗号化コンテンツ及びファイルシステムが 、更に、 SSL等によって暗号ィ匕されて、情報記録装置 200へと配信される (ステップ S 205)。より具体的には、 SSL等によって暗号ィ匕された暗号ィ匕コンテンツ及びファイル システムの属性、所謂、 CCI (Copy Control Information)は、配信されている途中に ぉ 、て、再生できな 、ようにするために、ネバーコピー（Never Copy)の属性に設定さ れる。  [0148] Next, in the information distribution apparatus 300, the encrypted content and file system encrypted based on the encryption system using the generated encryption key information Key 1 and Key 2 are further converted to SSL or the like. And is distributed to the information recording apparatus 200 (step S 205). More specifically, the encrypted content encrypted by SSL or the like and the attribute of the file system, so-called CCI (Copy Control Information), cannot be reproduced during distribution. To do this, it is set to the Never Copy attribute.
[0149] (2— 2— 3)情報記録装置における動作 続き  [0149] (2—2—3) Operation in information recording device continued
再び、情報記録装置 200においては、情報配信装置によって配信された、 SSL等 によって暗号ィ匕された暗号ィ匕コンテンツ及びファイルシステムが受信される（ステップ S107)。  Again, the information recording apparatus 200 receives the encrypted content and file system encrypted by SSL or the like distributed by the information distributing apparatus (step S107).
[0150] 次に、情報記録装置 200では、受信された暗号ィ匕コンテンツ及びファイルシステム を SSL等によって復号化する（ステップ S 108)。  [0150] Next, the information recording device 200 decrypts the received encrypted content and file system using SSL or the like (step S108).
[0151] 次に、情報記録装置 200では、暗号ィ匕情報 Keyl及び Key2によって暗号ィ匕された 暗号ィ匕コンテンツ及びファイルシステムを復号ィ匕しな 、で、そのまま光ディスク 100に 記録する (ステップ S109)。より具体的には、所定の暗号化システムに基づいて暗号 化された暗号ィ匕コンテンツ及びファイルシステムの記録は、プリ記録されて 、な 、リー ドインエリア 101の最後の記録領域のアドレスから開始され、プリ記録されているリー ドアウトエリア 103の記録領域のアドレスにおいて終了される。仮に、暗号化されたコ ンテンッ及びファイルシステムの記録力 プリ記録されているリードアウトエリア 103の 記録領域のアドレスまで行われな 、場合、このアドレスまで緩衝用データが記録され るようにしてもよい。尚、プリ記録された、各種のファイルシステムの拡張的な追記録 又は書き換え記録方法については、前述の図 9及び図 10において説明されている。 また、リードインエリア 101やリードアウトエリア 103等においては、緩衝用データが事 前に書き込まれて販売されてもよいし、情報記録装置 200によって、暗号化コンテン ッの記録の際に新たに書き込まれてもよ 、。  [0151] Next, the information recording apparatus 200 records the encrypted content and the file system encrypted by the encrypted key information Keyl and Key2 on the optical disc 100 as they are without decrypting them (Step S109). ). More specifically, the encrypted content and the file system recording encrypted based on a predetermined encryption system are pre-recorded and started from the address of the last recording area of the lead-in area 101, The process ends at the address of the recording area of the pre-recorded lead-out area 103. If the encrypted content and the recording capacity of the file system are not performed up to the address of the prerecorded recording area of the lead-out area 103, the buffer data may be recorded up to this address. . Note that the pre-recorded extended recording or rewriting recording method for various file systems is described in FIGS. 9 and 10 described above. In the lead-in area 101, the lead-out area 103, etc., the buffer data may be written and sold in advance, or newly written when the encrypted content is recorded by the information recording device 200. You can do it.
[0152] 以上のように、本実施例に係る配信システムは、情報記録装置 200と、情報配信装 置 300との外部ネットワーク 400を介した情報の授受において、暗号ィ匕情報 Key 1及 び Key 2の代わりにメディア IDを送受信する。従って、例えば、コントロールデータゾ ーン等の暗号化情報記録領域に予めプリ記録された暗号化情報 Keylの機密性を 高く保持する、即ち、セキュアな状態にすることが可能となる。よって、暗号化情報 Ke ylの違法なコピーが行われた記録型情報記録媒体を作成又は製造することは殆ど 又は完全に不可能となる。 [0152] As described above, the distribution system according to the present embodiment includes the information recording device 200, the information distribution device, and the like. In the exchange of information with the device 300 via the external network 400, the media ID is transmitted and received instead of the encryption key information Key 1 and Key 2. Therefore, for example, the confidentiality of the encrypted information Keyl pre-recorded in the encrypted information recording area such as the control data zone can be kept high, that is, a secure state can be achieved. Therefore, it becomes almost or completely impossible to create or manufacture a recordable information recording medium on which an illegal copy of the encryption information Key is made.
[0153] (3)情報記録装置 [0153] (3) Information recording device
次に、図 13及び図 14を参照して、本発明の情報記録装置の実施例について説明 する。  Next, an embodiment of the information recording apparatus of the present invention will be described with reference to FIG. 13 and FIG.
[0154] (3— 1)基本構成  [0154] (3— 1) Basic configuration
先ず、図 13を参照して、本発明の情報記録装置の実施例に係る、情報記録媒体を 記録又は再生する情報記録再生装置の基本構成について説明する。ここに、図 13 は、本発明の情報記録媒体を記録再生する情報記録再生装置の全体構成を示す ブロック図である。  First, the basic configuration of an information recording / reproducing apparatus for recording or reproducing an information recording medium according to an embodiment of the information recording apparatus of the present invention will be described with reference to FIG. FIG. 13 is a block diagram showing the overall configuration of the information recording / reproducing apparatus for recording / reproducing the information recording medium of the present invention.
[0155] 図 13に示されるように、情報記録再生装置 200は、光ディスク 100に対して再生ビ ームを照射するとともに反射光に応じた信号を出力する光ピックアップ 202と、光ディ スク 100の回転を制御するスピンドルモータ 203と、サーボユニット 222を備える。サ ーボユニット 222には、第 1クロック信号 CK1及びピット同期信号 SYNCpが供給され る。サーボユニット 222は、これらの信号に同期して、スピンドルモータ 203の回転を 制御するスピンドルサーボ、光ピックアップ 202の光ディスク 100に対する相対的位 置制御であるフォーカスサーボ及びトラッキングサーボを実行する。  As shown in FIG. 13, the information recording / reproducing apparatus 200 includes an optical pickup 202 that irradiates the optical disc 100 with a reproduction beam and outputs a signal corresponding to the reflected light, and an optical disc 100. A spindle motor 203 that controls rotation and a servo unit 222 are provided. The servo unit 222 is supplied with the first clock signal CK1 and the pit synchronization signal SYNCp. The servo unit 222 executes a spindle servo that controls the rotation of the spindle motor 203 and a focus servo and a tracking servo that are relative position controls of the optical pickup 202 with respect to the optical disc 100 in synchronization with these signals.
[0156] 尚、例えば、光ディスク 100には、第 1クロック信号 CK1に同期したピットデータ DP が記録マークの長短によって記録されている。この例の記録マークはピットであり、ト ラックはピット列によって構成される。トラックはゥォブルデータ DWを例えば変調して 得たゥォブル信号 WBに応じて蛇行した形状になって ヽる。ゥォブル信号 WBは第 2 クロック信号 CK2に同期している。第 1クロック信号 CK1は第 2クロック信号 CK2の N (Nは自然数)倍の周波数を有する。この例では、 N= 25であり、第 2クロック信号 CK 2は 420KHz、第 1クロック信号 CK1は 10. 5MHzである。 [0157] 光ピックアップ 202は、再生ビームを照射するレーザーダイオード、 4分割検出回路 を備える（図示略)。 4分割検出回路は、再生ビームの反射光を図 8に示す領域 1A、 1B、 1C、 IDに 4分割し、各領域の光量に応じた信号を各々出力する。ヘッドアンプ 204は、光ピックアップ 202の各出力信号を各々増幅し、領域 1Aに対応する分割読 取信号 la、領域 IBに対応する分割読取信号 lb、領域 1Cに対応する分割読取信号 lc、及び領域 IDに対応する分割読取信号 Idを出力する。なお、光ピックアップ 202 及びヘッドアンプ 204は本願発明に係る光ピックアップ手段に相当する。 [0156] For example, on the optical disc 100, pit data DP synchronized with the first clock signal CK1 is recorded by the length of the recording mark. The recording mark in this example is a pit, and the track is composed of a pit row. The track has a meandering shape according to the wobble signal WB obtained by modulating the wobble data DW, for example. The wobble signal WB is synchronized with the second clock signal CK2. The first clock signal CK1 has a frequency N times (N is a natural number) times the second clock signal CK2. In this example, N = 25, the second clock signal CK 2 is 420 KHz, and the first clock signal CK1 is 10.5 MHz. [0157] The optical pickup 202 includes a laser diode that irradiates a reproduction beam and a quadrant detection circuit (not shown). The quadrant detection circuit divides the reflected light of the reproduction beam into four regions 1A, 1B, 1C, and ID shown in FIG. 8, and outputs a signal corresponding to the amount of light in each region. The head amplifier 204 amplifies each output signal of the optical pickup 202, and the divided read signal la corresponding to the region 1A, the divided read signal lb corresponding to the region IB, the divided read signal lc corresponding to the region 1C, and the region The divided read signal Id corresponding to the ID is output. The optical pickup 202 and the head amplifier 204 correspond to the optical pickup means according to the present invention.
[0158] 総和生成回路 210は、分割読取信号 la、 lb、 lc、及び Idを加算して、総和読取 信号 SRFを出力する加算回路力 なる。なお、総和読取信号 SRFは、記録マークの 長短を表す信号である。  The sum generation circuit 210 adds the divided read signals la, lb, lc, and Id, and serves as an adder circuit that outputs the sum read signal SRF. The total read signal SRF is a signal indicating the length of the recording mark.
[0159] ピットデータ復調回路 211は、総和読取信号 SRFに基づいてピットデータ DPを再 生すると共に第 1クロック信号 CK1を生成する。より具体的には、ピットデータ DPは、 所定のテーブルを用いて復調されて再生データが生成される。例えば、変調方式と して EFM変調が採用される場合には、 14ビットのピットデータ DPを 8ビットの再生デ ータに変換する処理が施される。更に、この再生データの順序を予め定められた規 則に従って並べ換えるデスクランブル処理が実行され、処理済の再生データが出力 される。  The pit data demodulating circuit 211 reproduces the pit data DP based on the total read signal SRF and generates the first clock signal CK1. More specifically, the pit data DP is demodulated using a predetermined table to generate reproduction data. For example, when EFM modulation is adopted as a modulation method, a process of converting 14-bit pit data DP into 8-bit reproduction data is performed. Further, a descrambling process for rearranging the order of the reproduction data in accordance with a predetermined rule is executed, and processed reproduction data is output.
[0160] このようにして得られた再生データは、図 13に示すピットデータ訂正回路 212へ供 給され、そこで、エラー訂正処理や補間処理等が施された後、ノ ッファ 213に記憶さ れる。インターフェース 214はバッファ 213に記憶されたデータを順次読み出して所 定の出力形式に変換して外部機器へ出力する。更に、このインターフェース 214を介 して、各種データが、例えば、外部ネットワーク 400に接続された前述した回線接続 装置との間で入出力される。  [0160] The reproduction data obtained in this way is supplied to the pit data correction circuit 212 shown in FIG. 13, where it is subjected to error correction processing, interpolation processing, etc., and is then stored in the nother 213. . The interface 214 sequentially reads the data stored in the buffer 213, converts it into a predetermined output format, and outputs it to an external device. Further, various data are input / output via the interface 214 to / from the above-described line connection device connected to the external network 400, for example.
[0161] プッシュプル信号生成回路 220は、 (la+ Id) (lb + lc)を算出して、プッシュプ ル信号を生成する。成分（la+ ld)は、読取方向に対して左側の領域 1A及び 1Dに 対応する一方、成分（lb + lc)は、読取方向に対して右側の領域 1B及び 1Cに対応 する。即ち、再生ビームがピットに対して左側に偏っていれば、プッシュプル信号は 振幅中心を基準として正極性となり、再生ビームがピットの中央に位置する場合はプ ッシュプル信号の値は振幅中心となり、再生ビームがピットに対して右側に偏って ヽ れば、プッシュプル信号は振幅中心を基準として負極性となる。再生ビームとピットの 相対的な位置は、トラックの蛇行に応じて変化し、プッシュプル信号の値は再生ビー ムとピットの相対的な位置関係を表している。即ち、プッシュプル信号は、トラックの蛇 行に応じた信号である。 [0161] The push-pull signal generation circuit 220 calculates (la + Id) (lb + lc) and generates a push-pull signal. The component (la + ld) corresponds to the regions 1A and 1D on the left side with respect to the reading direction, while the component (lb + lc) corresponds to the regions 1B and 1C on the right side with respect to the reading direction. That is, if the playback beam is biased to the left with respect to the pit, the push-pull signal is positive with respect to the center of amplitude, and if the playback beam is located at the center of the pit The value of the shull signal is centered on the amplitude, and if the reproduction beam is biased to the right side with respect to the pit, the push-pull signal becomes negative with respect to the center of amplitude. The relative position of the playback beam and the pit changes according to the meandering of the track, and the value of the push-pull signal indicates the relative position of the playback beam and the pit. That is, the push-pull signal is a signal corresponding to the meandering of the track.
[0162] プッシュプル信号はローパスフィルタ 221を介してサーボユニット 222へ出力される 。サーボユニット 222は、プッシュプル信号に基づいてトラッキング制御を実行する。 また、プッシュプル信号はバンドパスフィルタ 223に供給される。バンドパスフィルタ 2 23の通過帯域は、記録時にぉ ヽてゥォブルデータ DWを例えば変調して得たゥォブ ル信号 WBをプッシュプル信号力も抽出できるように設定されている。従って、バンド パスフィルタ 223はプッシュプル信号生成回路 220と共に上述した検出手段を構成 し、その出力信号は、光ディスク 100からゥォブル信号 WBを再生したものとなる。  [0162] The push-pull signal is output to the servo unit 222 via the low-pass filter 221. The servo unit 222 performs tracking control based on the push-pull signal. The push-pull signal is supplied to the band pass filter 223. The pass band of the bandpass filter 223 is set so that the wobble signal WB obtained by, for example, modulating the wobble data DW at the time of recording can also extract the push-pull signal power. Therefore, the band pass filter 223 constitutes the above-described detection means together with the push-pull signal generation circuit 220, and its output signal is a reproduction of the wobble signal WB from the optical disc 100.
[0163] CPU250は、情報記録再生装置 200の各構成要素を統括制御する。  The CPU 250 performs overall control of each component of the information recording / reproducing apparatus 200.
[0164] (3— 2)動作原理 (記録処理、及び再生処理）  [0164] (3-2) Principle of operation (recording and playback processing)
次に、図 14を参照して、本発明の情報記録装置の実施例に係る情報記録再生装 置における動作原理について説明する。ここに、図 14は、本発明の情報記録装置の 実施例に係る情報記録再生装置による記録データの記録又は再生処理を示したフ ローチャートである。  Next, the operation principle of the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention will be described with reference to FIG. FIG. 14 is a flowchart showing recording data recording or reproducing processing by the information recording / reproducing apparatus according to the embodiment of the information recording apparatus of the present invention.
[0165] 図 14に示されるように、記録処理、及び再生処理においては、先ず、ユーザによつ て、情報記録媒体が装着される (ステップ S101a)。 As shown in FIG. 14, in the recording process and the reproduction process, first, an information recording medium is loaded by the user (step S101a).
[0166] 次に、 CPU250の制御下で、例えばコントロールデータゾーン CDZから、各種の情 報が取得される等の初期動作が行われる (ステップ S 102a)。  [0166] Next, under the control of the CPU 250, for example, initial operations such as acquisition of various information from the control data zone CDZ are performed (step S102a).
[0167] 次に、 CPU250の制御下で、例えばコントロールデータゾーン CDZにおいて、間 欠的にゥォブルがプリフォーマットされているか否かが判定される（ステップ S 103a)。 と同時に、又は、相前後して、 CPU250の制御下で、例えばゥォブル無し区間の記 録領域において、例えばダミーデータ等の所定のデータがプリ記録されている力否 かが判定される（ステップ S 104)。ここで、コントロールデータゾーン CDZにおいて、 間欠的にゥォブルがプリフォーマットされていると判定された場合 (ステップ S103a:Y es)、又は、ゥォブル無し区間の記録領域において、所定のデータがプリ記録されて いると判定された場合 (ステップ S104a: Yes)、例えば CSS等の暗号ィ匕システムに準 拠した、正当な情報記録媒体として、認証される (ステップ S105a)。 Next, under the control of the CPU 250, for example, in the control data zone CDZ, it is determined whether or not the wobble is preformatted (step S103a). At the same time or before and after, under the control of the CPU 250, for example, it is determined whether or not a predetermined data such as dummy data is pre-recorded in the recording area of the section without wobble (step S). 104). Here, if it is determined that the wobble is intermittently preformatted in the control data zone CDZ (step S103a: Y es), or when it is determined that the predetermined data is pre-recorded in the recording area of the no-wobble section (step S104a: Yes), for example, legitimate information conforming to an encryption system such as CSS It is authenticated as a recording medium (step S105a).
[0168] 次に、 CPU250の制御下で、例えば DVDコンテンツ等の記録情報の記録を行うか 否かが判定される (ステップ S106a)。ここで、記録情報の記録を行う場合 (ステップ S 106a:Yes)、 CPU250の制御下で、例えば DVDコンテンツ等の記録情報の記録 が行われる（ステップ S 107a)。  [0168] Next, it is determined whether or not recording information such as DVD content is to be recorded under the control of the CPU 250 (step S106a). Here, when recording information is recorded (step S106a: Yes), recording information such as DVD content is recorded under the control of the CPU 250 (step S107a).
[0169] 次に、 CPU250の制御下で、記録情報の記録に対応して、ファイルシステムの更 新を行うか否かが判定される (ステップ S108a)。ここで、ファイルシステムの更新を行 う場合 (ステップ S108a :Yes)、 CPU250の制御下で、ファイルシステムに対する、 拡張的な、追記録又は書き換え記録が行われる (ステップ S109a)。他方、ファイル システムの更新を行わない場合 (ステップ S 108a : No)、このステップ S 109aは、省 略される。  Next, under the control of the CPU 250, it is determined whether or not to update the file system in response to recording of the recording information (step S108a). Here, when the file system is updated (step S108a: Yes), an extended additional recording or rewriting recording is performed on the file system under the control of the CPU 250 (step S109a). On the other hand, when the file system is not updated (step S108a: No), this step S109a is omitted.
[0170] 他方、前述した、ステップ S 106aの判定の結果、記録情報の記録を行わない場合（ ステップ S106a :No)、 CPU250の制御下で、例えば DVDコンテンツ等の記録情報 の再生を行うか否かが判定される (ステップ S 111a)。ここで、記録情報の再生を行う 場合(ステップ3111& :丫63)、じ？11250の制御下で、記録情報の再生が行われる（ ステップ S 112a)。他方、記録情報の再生を行わない場合 (ステップ S 11 la : No)、こ のステップ SI 12aは、省略される。  On the other hand, if the recording information is not recorded as a result of the determination in step S 106a described above (step S 106a: No), whether or not the recording information such as DVD content is reproduced under the control of the CPU 250. Is determined (step S111a). If you want to play back recorded information (step 3111 &: 丫 63), Under the control of 11250, the recorded information is reproduced (step S112a). On the other hand, when the recorded information is not reproduced (step S11la: No), this step SI12a is omitted.
[0171] 次に、 CPU250の制御下で、記録情報の記録処理又は再生処理を終了するか否 かが判定される (ステップ SI 10a)。ここで、記録情報の記録処理又は再生処理を終 了する場合 (ステップ Sl lOa: Yes)、或いは、前述したステップ 103の判定の結果、 コントロールデータゾーン CDZにおいて、間欠的にゥォブルがプリフォーマットされて いないと判定された場合 (ステップ S 103a: No)、更に或いは、前述したステップ 104 aの判定の結果、ゥォブル無し区間の記録領域において、所定のデータがプリ記録さ れていないと判定された場合 (ステップ S 104a : No)、 CPU250の制御下で、一連の 記録情報の記録処理又は再生処理が終了される。  Next, under the control of the CPU 250, it is determined whether or not the recording information recording process or the reproducing process is to be ended (step SI 10a). Here, when the recording process or the reproduction process of the recorded information is ended (step Sl lOa: Yes), or as a result of the determination in step 103 described above, the wobble is intermittently preformatted in the control data zone CDZ. If it is determined that there is no pre-recording (step S 103a: No), or in addition, as a result of the determination in step 104a described above, it is determined that the predetermined data is not pre-recorded in the recording area of the wobble-free section. (Step S104a: No) Under the control of the CPU 250, a series of recording information recording processing or reproducing processing is ended.
[0172] (4)他の詳細構成 次に、図 15から図 20を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及 び「第 2記録エリア」を中心とした他の詳細構成について説明する。 [0172] (4) Other detailed configurations Next, with reference to FIGS. 15 to 20, another detailed configuration centering on the “management information”, “first recording area”, and “second recording area” according to the present invention will be described.
[0173] (4 1)他の詳細構成 その 3— [0173] (4 1) Other detailed configuration 3—
次に、図 15を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2 記録エリア」を中心とした他の詳細構成 (その 3)について説明する。ここに、図 15は、 本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの 一具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録ェ リアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 3)である。尚、前述した一の詳細構成と、概ね同様の構成には、同様 の符号番号を付し、それらの説明は適宜省略する。  Next, with reference to FIG. 15, another detailed configuration (part 3) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. FIG. 15 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. FIG. 5B is another schematic diagram (part 3) conceptually showing an arrangement relationship with the recording area of the wobbled section which is a specific example of the two recording areas. In addition, the same code | symbol is attached | subjected to the one detailed structure mentioned above, and a structure substantially the same, and those description is abbreviate | omitted suitably.
[0174] 図 15に示されるように、他の詳細構成 (その 3)においては、特に、管理情報の他部 FSlb力 ゥォブル無し区間の記録領域と、ゥォブル有り区間の記録領域との境界位 置から所定の長さ (所謂、助走区間)だけ離れた位置から記録される。この結果、一 般的な情報記録装置は、制御情報がプリフォーマットされて 、る所定の長さのゥォブ ル有り区間の記録領域において、クロック情報やアドレス情報を、取得し、当該情報 記録装置が保持する記録クロックと同期させる（ロックさせる)ことが可能である。この 結果、当該情報記録装置は、管理情報の他部 FSlbを、より高精度にゥォブル有り区 間の記録領域に記録することが可能である。  [0174] As shown in FIG. 15, in the other detailed configuration (part 3), the boundary position between the recording area of the section without wobble and the recording area of the section with wobble in particular, in the other part of the management information FSlb force Is recorded from a position separated by a predetermined length (so-called run-up section). As a result, a general information recording apparatus acquires clock information and address information in a recording area of a wobbled section having a predetermined length after the control information is preformatted, and the information recording apparatus It is possible to synchronize (lock) with the recording clock to be held. As a result, the information recording apparatus can record the other part FSlb of the management information in a recording area between wobbles with higher accuracy.
[0175] (4 2)他の詳細構成 その 4  [0175] (4 2) Other detailed configurations 4
次に、図 16を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2 記録エリア」を中心とした他の詳細構成 (その 4)について説明する。ここに、図 16は、 本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの 一具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録ェ リアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 4)である。尚、前述した一の詳細構成と、概ね同様の構成には、同様 の符号番号を付し、それらの説明は適宜省略する。  Next, with reference to FIG. 16, another detailed configuration (part 4) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. Here, FIG. 16 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. FIG. 10 is another schematic diagram (part 4) conceptually showing the arrangement relationship between the wobbled section and the recording area, which is a specific example of the two recording areas. In addition, the same code | symbol is attached | subjected to the one detailed structure mentioned above, and a structure substantially the same, and those description is abbreviate | omitted suitably.
[0176] 図 16に示されるように、他の詳細構成 (その 4)においては、特に、管理情報の他部 FSlbは、例えば暗号ィ匕情報やダミーデータ等の所定のデータの位置を示すアドレ ス等のポインタ位置情報を含む。この結果、ゥォブル有り区間の記録領域に記録され る管理情報の他部 FS lbに含まれるポインタ位置情報に基づいて、所定のデータが 、より迅速且つ的確に再生されることが可能である。特に、所定のデータのうち、ボイ ンタ位置情報によって、指定されない部分は、ファイルシステムによって「Un-allocate d AreaJとして管理されるようにしてもよ！、。 As shown in FIG. 16, in the other detailed configuration (part 4), in particular, the other part FSlb of the management information is an address indicating the position of predetermined data such as encryption key information or dummy data. Pointer position information such as As a result, the predetermined data can be reproduced more quickly and accurately based on the pointer position information included in the other part FS lb of the management information recorded in the recording area of the section with wobble. In particular, a part of the predetermined data that is not specified by the pointer position information may be managed as “Un-allocated AreaJ!” By the file system.
[0177] 或いは、図 16に示されるように、管理情報の一部 FSlaは、所定のデータの位置を 示すアドレス等のポインタ位置情報を含む。この結果、ゥォブル有り区間の記録領域 に記録される管理情報の一部 FS laに含まれるポインタ位置情報に基づいて、所定 のデータ力 より迅速且つ的確に再生されることも可能である。  Alternatively, as shown in FIG. 16, a part of the management information FSla includes pointer position information such as an address indicating the position of predetermined data. As a result, a part of the management information recorded in the recording area of the wobbled section can be reproduced more quickly and accurately than the predetermined data force based on the pointer position information included in FS la.
[0178] (4 3)他の詳細構成 その 5—  [0178] (4 3) Other detailed configurations 5—
次に、図 17及び図 18を参照して、本発明に係る「管理情報」、「第 1記録エリア」、 及び「第 2記録エリア」を中心とした他の詳細構成 (その 5)について説明する。ここに 、図 17は、本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記 録エリアの一具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の 第 2記録エリアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念 的に示す他の模式図（その 5)である。図 18は、本発明の第 1記録エリアの一具体例 であるゥォブル (Wobble)無し区間の記録領域が、複数存在する場合の一及び他の 具体例である。尚、前述した一の詳細構成と、概ね同様の構成には、同様の符号番 号を付し、それらの説明は適宜省略する。  Next, with reference to FIG. 17 and FIG. 18, another detailed configuration (part 5) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. To do. Here, FIG. 17 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobbleless section which is a specific example of the first recording area of the present invention, and a recording area of the present invention. FIG. 10 is another schematic diagram (No. 5) conceptually showing an arrangement relationship with the recording area of the section with wobble, which is a specific example of the second recording area. FIG. 18 shows one and other specific examples in the case where there are a plurality of recording areas in a wobble-free section, which is a specific example of the first recording area of the present invention. Note that the same reference numerals are assigned to substantially the same configurations as the one detailed configuration described above, and description thereof will be omitted as appropriate.
[0179] 図 17に示されるように、他の詳細構成（その 5)においては、特に、複数のゥォブル 無し区間の記録領域を備え、少なくとも一つのゥォブル無し区間の記録領域は、当 該情報記録媒体の属性 (例えば種類の識別情報など)を管理する属性管理情報を 記録するためのコントロールデータゾーン CDZに含まれる。  [0179] As shown in FIG. 17, in the other detailed configuration (part 5), in particular, a plurality of wobbleless section recording areas are provided, and at least one wobbleless section recording area includes the information recording section. It is included in the control data zone CDZ for recording attribute management information that manages the attributes of media (for example, type identification information).
[0180] この結果、例えば、前述した情報記録装置によって、例えばコントロールデータゾ ーン内に、ゥォブル無し区間の記録領域が存在することが識別される。この識別に基 づいて、当該情報記録媒体が、ゥォブル無し区間の記録領域に管理情報の一部又 は全部がプリ記録されて 、る情報記録媒体であると、迅速且つ的確に判定すること が可能である。 [0181] より詳細には、図 18 (a)に示されるように、複数のゥォブル無し区間の記録領域と、 複数のゥォブル有り区間の記録領域とが、無秩序に (ランダムに）、配置されるように してもよい。或いは、図 18 (b)に示されるように、複数の第 1所定長のゥォブル無し区 間の記録領域と、複数の第 2所定長のゥォブル有り区間の記録領域とが、交互に配 置されるようにしてもよい。この結果、例えば、前述した情報記録装置によって、複数 の第 1記録エリアが存在することが識別される。この識別に基づいて、当該情報記録 媒体が、ゥォブル無し区間の記録領域に管理情報の一部又は全部がプリ記録されて V、る情報記録媒体であると、迅速且つ的確に判定することが可能である。 As a result, for example, the information recording apparatus described above identifies that there is a recording area of a no-wobble section, for example, in the control data zone. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the recording area of the wobble-free section. Is possible. [0181] More specifically, as shown in FIG. 18 (a), a plurality of recording areas in a section without wobble and a recording area in a section with a plurality of wobbles are arranged randomly (randomly). You may do it. Alternatively, as shown in FIG. 18 (b), a plurality of first predetermined length wobbleless recording areas and a plurality of second predetermined length wobbled recording areas are alternately arranged. You may make it do. As a result, for example, the information recording apparatus described above identifies that there are a plurality of first recording areas. Based on this identification, it is possible to quickly and accurately determine that the information recording medium is an information recording medium in which part or all of the management information is pre-recorded in the recording area of the wobble-free section. It is.
[0182] (4 4)他の詳細構成 その 6—  [0182] (4 4) Other detailed components 6—
次に、図 19を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2 記録エリア」を中心とした他の詳細構成 (その 6)について説明する。ここに、図 19は、 本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの 一具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録ェ リアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 6)である。尚、前述した一の詳細構成と、概ね同様の構成には、同様 の符号番号を付し、それらの説明は適宜省略する。  Next, with reference to FIG. 19, another detailed configuration (No. 6) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. Here, FIG. 19 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. FIG. 10 is another schematic diagram (part 6) conceptually showing the positional relationship with the recording area of the section with wobble, which is a specific example of the two recording areas. In addition, the same code | symbol is attached | subjected to the one detailed structure mentioned above, and a structure substantially the same, and those description is abbreviate | omitted suitably.
[0183] 図 19に示されるように、他の詳細構成（その 6)においては、特に、ファイルシステム FSlaが、ゥォブル有り区間の記録領域と、ゥォブル無し区間の記録領域と、を跨って 記録可能である。この結果、例えばファイルシステム FSlaのデータ量が大きい場合 でも、記録領域において、連続的にひとかたまりで、ファイルシステムを記録可能であ る。 [0183] As shown in FIG. 19, in the other detailed configuration (part 6), the file system FSla can record across the recording area of the section with wobble and the recording area of the section without wobble. It is. As a result, for example, even when the amount of data in the file system FSla is large, the file system can be recorded continuously in one piece in the recording area.
[0184] (4 5)他の詳細構成 その 7—  [0184] (4 5) Other detailed configurations 7—
次に、図 20を参照して、本発明に係る「管理情報」、「第 1記録エリア」、及び「第 2 記録エリア」を中心とした他の詳細構成 (その 7)について説明する。ここに、図 20は、 本発明の管理情報の一具体例であるファイルシステム、本発明の第 1記録エリアの 一具体例であるゥォブル (Wobble)無し区間の記録領域、及び、本発明の第 2記録ェ リアの一具体例であるゥォブル有り区間の記録領域との配置関係を概念的に示す他 の模式図（その 7)である。尚、前述した一の詳細構成と、概ね同様の構成には、同様 の符号番号を付し、それらの説明は適宜省略する。 Next, with reference to FIG. 20, another detailed configuration (part 7) centering on “management information”, “first recording area”, and “second recording area” according to the present invention will be described. Here, FIG. 20 shows a file system which is a specific example of the management information of the present invention, a recording area of a wobble-free section which is a specific example of the first recording area of the present invention, and a first example of the present invention. FIG. 10B is another schematic diagram (part 7) conceptually showing an arrangement relationship with the recording area of the wobbled section which is a specific example of the two recording areas. It should be noted that the same detailed configuration as the above-described one is substantially the same. The reference numerals are assigned, and the description thereof is omitted as appropriate.
[0185] 図 20に示されるように、他の詳細構成（その 7)においては、特に、ファイルシステム FSlaが、ゥォブル有り区間の記録領域において、ゥォブル無し区間の記録領域の開 始端力 所定の距離だけ内周側に離れて、記録可能である。この結果、例えばフアイ ルシステム FS laのデータ量が小さい場合に、より効率的に記録領域を利用して、フ アイルシステムを記録可能である。  [0185] As shown in FIG. 20, in the other detailed configuration (part 7), the file system FSla, in particular, in the recording area in the wobbled section, the starting end force of the recording area in the non-wobbled section has a predetermined distance. Only recording is possible away from the inner periphery. As a result, for example, when the data amount of the file system FS la is small, the file system can be recorded using the recording area more efficiently.
[0186] また、上述した実施例では、情報記録媒体の一例として、追記型や書き換え記録 型の光ディスク、並びに、情報記録装置の一例として光ディスクに係るレコーダー或 いはプレーヤーについて説明した力 本発明は、光ディスク、及び、当該光ディスク のレコーダー或いはプレーヤーに限られるものではなぐ他の高密度記録或いは高 転送レート対応の各種の情報記録媒体、並びに、当該各種の情報記録媒体のレコ ーダー或 、はプレーヤーにも適用可能である。  [0186] Further, in the above-described embodiments, the power described for a write-once or rewritable optical disc as an example of an information recording medium, and a recorder or player related to an optical disc as an example of an information recording device. , Optical discs, and other information recording media compatible with other high-density recording or high transfer rates, not limited to the recorder or player of the optical disc, and the recorder or player of the various information recording media. Is also applicable.
[0187] 本発明は、上述した実施例に限られるものではなぐ請求の範囲及び明細書全体 力 読み取れる発明の要旨或いは思想に反しない範囲で適宜変更可能であり、その ような変更を伴う情報記録媒体、情報記録装置及び方法、並びに記録制御用のコン ピュータプログラムもまた本発明の技術的範囲に含まれるものである。 [0187] The present invention is not limited to the above-described embodiments, but can be appropriately modified within the scope of the claims and the entire specification. A medium, an information recording apparatus and method, and a computer program for recording control are also included in the technical scope of the present invention.
産業上の利用可能性  Industrial applicability
[0188] 本発明に係る情報記録媒体、情報記録装置及び方法、並びに、コンピュータプロ グラムは、例えば DVD (Digital Versatile Disc)、 BD (Blu- ray Disc)、 CD (Compact Disc)等のレーザ光を照射することによって記録及び再生が可能な光ディスク等の情 報記録媒体に利用可能であり、また当該情報記録媒体の情報記録装置等に利用可 能である。また、例えば民生用或いは業務用の各種コンピュータ機器に搭載される 又は各種コンピュータ機器に接続可能な情報記録装置等にも利用可能である。 [0188] The information recording medium, information recording apparatus and method, and computer program according to the present invention use laser light such as DVD (Digital Versatile Disc), BD (Blu-ray Disc), and CD (Compact Disc). It can be used for an information recording medium such as an optical disc that can be recorded and reproduced by irradiation, and can also be used for an information recording device of the information recording medium. Further, the present invention can also be used for an information recording device or the like that is mounted on or connectable to various computer equipment for consumer use or business use.

Claims

請求の範囲 The scope of the claims
[1] 記録情報を記録又は再生するための、クロック情報及びアドレス情報のうち少なくと も一方である検出可能な制御情報がプリフォーマットされていない第 1記録エリアと、 前記第 1記録エリアの、少なくとも内周側に位置されると共に、前記制御情報がプリ フォーマットされた一又は複数の第 2記録エリアと  [1] A first recording area in which at least one of the clock information and the address information for recording or reproducing the recorded information is not preformatted with detectable control information, and the first recording area, One or a plurality of second recording areas which are located at least on the inner circumference side and in which the control information is preformatted
を備え、  With
前記第 2記録エリアにおいて、前記記録情報の記録位置又は再生位置を管理する 管理情報の一部又は全部を配置可能又は記録可能であることを特徴とする情報記 録媒体。  An information recording medium characterized in that a part or all of management information for managing a recording position or a reproduction position of the recording information can be arranged or recorded in the second recording area.
[2] 前記第 2記録エリアにおいて、前記管理情報の一部又は全部は、 30000M16進 数表示）の物理アドレス力 配置可能であることを特徴とする請求の範囲第 1項に記 載の情報記録媒体。  [2] The information recording according to claim 1, wherein in the second recording area, a part or all of the management information can be arranged with a physical address force of 30000M hexadecimal notation) Medium.
[3] 前記第 1記録エリアの外周側に位置される他の前記第 2記録エリアにおいて、前記 管理情報の他部を記録可能であり、  [3] In the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded,
前記第 1記録エリアの内周側に位置される一の前記第 2記録エリアに配置されてい る前記管理情報の一部は、前記管理情報の他部が記録される位置に関する位置情 報を含むことを特徴とする請求の範囲第 1項に記載の情報記録媒体。  A part of the management information arranged in one second recording area located on the inner circumference side of the first recording area includes position information regarding a position where the other part of the management information is recorded. The information recording medium according to claim 1, wherein:
[4] 前記管理情報の一部は、 UDF、又は ISO9660の規格に基づく情報を含むことを 特徴とする請求の範囲第 3項に記載の情報記録媒体。 [4] The information recording medium according to claim 3, wherein a part of the management information includes information based on UDF or ISO9660 standards.
[5] 前記第 1記録エリアの外周側に位置される他の前記第 2記録エリアにおいて、前記 管理情報の他部が、前記第 1記録エリアと当該他の第 2記録エリアとの境界位置から 所定の長さだけ離れた位置力 記録されることを特徴とする請求の範囲第 1項に記 載の情報記録媒体。 [5] In the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information is from a boundary position between the first recording area and the other second recording area. 2. The information recording medium according to claim 1, wherein a positional force separated by a predetermined length is recorded.
[6] 前記第 1記録エリアの外周側に位置される他の前記第 2記録エリアにおいて記録 可能な前記管理情報の他部は、 (i)前記記録情報を記録又は再生する際の論理階 層に関する情報、又は (ii)前記記録情報の属性に関する情報を含むことを特徴とす る請求の範囲第 1項に記載の情報記録媒体。  [6] The other part of the management information that can be recorded in the other second recording area located on the outer peripheral side of the first recording area is (i) a logical hierarchy when recording or reproducing the recording information The information recording medium according to claim 1, further comprising: (ii) information relating to attributes of the recording information.
[7] 前記管理情報の一部又は全部は、前記第 2記録エリアと前記第 1記録エリアとを跨 つて配置可能であることを特徴とする請求の範囲第 1項に記載の情報記録媒体。 [7] Part or all of the management information straddles the second recording area and the first recording area. 2. The information recording medium according to claim 1, wherein the information recording medium can be arranged.
[8] 前記第 1記録エリアにおいて、所定のデータが、更に、プリ記録されていることを特 徴とする請求の範囲第 1項に記載の情報記録媒体。 8. The information recording medium according to claim 1, wherein predetermined data is further pre-recorded in the first recording area.
[9] 前記所定のデータは、記録情報の暗号ィ匕のための暗号ィ匕情報であることを特徴と する請求の範囲第 8項に記載の情報記録媒体。 9. The information recording medium according to claim 8, wherein the predetermined data is encryption information for encryption of recording information.
[10] 前記所定のデータは、少なくともユーザデータエリア内にプリ記録されていることを 特徴とする請求の範囲第 8項に記載の情報記録媒体。 10. The information recording medium according to claim 8, wherein the predetermined data is pre-recorded at least in a user data area.
[11] 前記第 1記録エリアの外周側に位置される他の前記第 2記録エリアにおいて、前記 管理情報の他部が記録可能であり、 [11] In the other second recording area located on the outer peripheral side of the first recording area, the other part of the management information can be recorded,
前記管理情報の他部は、前記所定のデータの位置を示すポインタ位置情報を含 むことを特徴とする請求の範囲第 8項に記載の情報記録媒体。  9. The information recording medium according to claim 8, wherein the other part of the management information includes pointer position information indicating a position of the predetermined data.
[12] 前記管理情報の一部は、前記所定のデータの位置を示すポインタ位置情報を含 むことを特徴とする請求の範囲第 8項に記載の情報記録媒体。 12. The information recording medium according to claim 8, wherein a part of the management information includes pointer position information indicating a position of the predetermined data.
[13] 前記管理情報の一部又は全部は、当該管理情報が、 UDFブリッジの規格に基づく 場合、 UDFの規格に基づく情報にカ卩えて、 ISO9660の規格に基づく情報を含むこ とを特徴とする請求の範囲第 1項に記載の情報記録媒体。 [13] A part or all of the management information includes information based on the ISO9660 standard in addition to the information based on the UDF standard when the management information is based on the UDF bridge standard. The information recording medium according to claim 1.
[14] 複数の前記第 1記録エリアを備えることを特徴とする請求の範囲第 1項に記載の情 報記録媒体。 14. The information recording medium according to claim 1, further comprising a plurality of the first recording areas.
[15] 複数の前記第 1記録エリアを備え、 [15] comprising a plurality of the first recording areas,
少なくとも一つの前記第 1記録エリアは、当該情報記録媒体の属性を管理する属性 管理情報を記録するための属性管理エリアに含まれることを特徴とする請求の範囲 第 1項に記載の情報記録媒体。  2. The information recording medium according to claim 1, wherein the at least one first recording area is included in an attribute management area for recording attribute management information for managing an attribute of the information recording medium. .
[16] 複数の前記第 1記録ヱリアと、 [16] A plurality of the first recording rears,
複数の前記第 2記録エリアとを備え、  A plurality of the second recording areas,
第 1所定長の前記第 1記録エリアと、第 2所定長の前記第 2記録エリアとが、交互に 配置されていることを特徴とする請求の範囲第 1項に記載の情報記録媒体。  2. The information recording medium according to claim 1, wherein the first recording area having a first predetermined length and the second recording area having a second predetermined length are alternately arranged.
[17] 請求の範囲第 1項に記載の情報記録媒体に、前記記録情報を記録する情報記録 装置であって、 前記記録情報を記録する記録手段と、 [17] An information recording apparatus for recording the recording information on the information recording medium according to claim 1, Recording means for recording the recording information;
(i)前記第 1記録エリアにおいて、所定のデータのプリ記録が行われている力否力、 又は (ii)記録領域において、第 1所定長の前記第 1記録エリアと、第 2所定長の前記 第 2記録エリアとの、交互の配置が行われて 、るか否かの判定を行う判定手段と、 前記判定の結果、前記プリ記録が行われている、又は、前記交互の配置が行われ ている場合には、前記記録情報の記録と同時に、又は、相前後して、前記管理情報 の一部又は全部を記録するように、前記記録手段を制御する制御手段と  (i) force force or pre-recording of predetermined data in the first recording area, or (ii) a first predetermined length of the first recording area and a second predetermined length of the recording area. A determination unit configured to determine whether or not alternate arrangement with the second recording area is performed; and as a result of the determination, the pre-recording is performed or the alternate arrangement is performed. A control means for controlling the recording means so as to record a part or all of the management information at the same time as or after the recording of the recording information.
を備えることを特徴とする情報記録装置。  An information recording apparatus comprising:
[18] 請求の範囲第 1項に記載の情報記録媒体に、前記記録情報を記録する記録手段 を備える情報記録装置における情報記録方法であって、 [18] An information recording method in an information recording apparatus comprising: recording means for recording the recording information on the information recording medium according to claim 1;
(i)前記第 1記録エリアにおいて、所定のデータのプリ記録が行われている力否力、 又は (ii)記録領域において、第 1所定長の前記第 1記録エリアと、第 2所定長の前記 第 2記録エリアとの、交互の配置が行われて 、る力否かの判定を行う判定工程と、 前記判定の結果、前記プリ記録が行われている、又は、前記交互の配置が行われ ている場合には、前記記録情報の記録と同時に、又は、相前後して、前記管理情報 の一部又は全部を記録するように、前記記録手段を制御する制御工程と  (i) force force or pre-recording of predetermined data in the first recording area, or (ii) a first predetermined length of the first recording area and a second predetermined length of the recording area. A determination step of determining whether or not the second recording area is alternately arranged, and whether or not the pre-recording is performed as a result of the determination, or the alternating arrangement is performed. A control step for controlling the recording means so as to record a part or all of the management information simultaneously with the recording of the recording information or in succession to the recording of the recording information.
を備えることを特徴とする情報記録方法。  An information recording method comprising:
[19] 請求の範囲第 17項に記載の情報記録装置に備えられたコンピュータを制御する 記録制御用のコンピュータプログラムであって、該コンピュータを、前記記録手段、前 記判定手段、及び、前記制御手段のうち少なくとも一部として機能させることを特徴と するコンピュータプログラム。 [19] A computer program for recording control for controlling a computer provided in the information recording device according to claim 17, wherein the computer includes the recording unit, the determination unit, and the control. A computer program characterized in that it functions as at least a part of the means.
PCT/JP2006/321498 2005-10-27 2006-10-27 Information recording medium, information recording device and method, and computer program WO2007049744A1 (en)

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