WO2007049743A1 - 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 - Google Patents
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 Download PDFInfo
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- WO2007049743A1 WO2007049743A1 PCT/JP2006/321497 JP2006321497W WO2007049743A1 WO 2007049743 A1 WO2007049743 A1 WO 2007049743A1 JP 2006321497 W JP2006321497 W JP 2006321497W WO 2007049743 A1 WO2007049743 A1 WO 2007049743A1
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- recording
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- recording area
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- 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
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- 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
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- 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
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- 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
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- 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
- G11B2020/1268—Address in pregroove [ADIP] information
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- 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
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- 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
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- 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 a laser beam 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 (hereinafter referred to as “DVD-R / RW”) which is recorded on a recordable information recording medium such as DVD-R / RW and sold through a network (refer to Patent Documents 1 and 2)
- a distribution system that distributes “cryptographic content” as appropriate is disclosed.
- encrypted information applied to an information recording medium having the same physical structure as a conventional DVD-R / RW or other recordable information recording medium, and to a conventional read-only medium such as a DVD-ROM. Is pre-recorded in the 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-R / W 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 Publication No. 2001-357001
- Patent Document 3 Japanese Patent Laid-Open No. 2003-272309
- Patent Document 4 Japanese Patent Laid-Open No. 7-182218
- Non-Patent Document 1 “DVD Content Protection” Toshiba Review Vol.58, No6 (2003)
- Patent Document 3 in order to target a hybrid type information recording medium having a reproduction-only area and a rewritable recording area, the initialization process is performed in the recording area.
- the multi-partition data structure is adopted as the data structure. Therefore, a technical problem arises that it is difficult to record content based on the conventional DVD-Video format.
- 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, there is a technical problem that it has to be copied (duplicated) or changed redundantly.
- the present invention has been made in view of the above-described problems, for example, and in a hybrid information recording medium, the confidentiality of the encrypted information for encrypting the content is improved and the file system is appropriately It is an object to provide an information recording medium, an information recording apparatus and method, and a computer program that allows a computer to function as such an information recording apparatus.
- the information recording medium of the present invention can detect at least one of clock information (Wobble) and address information (LPP) for recording or reproducing the recording information.
- a part (FSla) or all of the management information (File System) that manages the recording or playback position of information is pre-recorded.
- the control information that is at least one of clock information (Wobble) and address information (LPP) for recording or reproducing the recorded information is not pre-formatted.
- recording information is recorded or recorded in the first recording area.
- Control information that is at least one of address information such as Land Pre Pit and clock information based on, for example, recording track wobbling, is preformatted. Nare ,.
- this control information is preformatted.
- a part or all of management information such as a file system for managing the recording position or the reproducing position of the recording information is pre-recorded.
- management information such as a file system for managing the recording position or the reproducing position of the recording information is pre-recorded.
- control information such as clock information is not preformatted in the first recording area, for example, in the first recording area, for example, by a general information recording apparatus
- Management information such as a file system based on a secure encryption system is hardly or completely overwritten or altered by unintended illegal information.
- a determination area for determining whether or not playback of recorded information is permitted first is accessed. If the area is included in the first recording area in which part or all of the management information is pre-recorded, the following effects can be obtained. 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 is at least in the determination area. In the reproduction process, it is impossible to distinguish the information recording medium of the present invention from a general reproduction-only information recording medium such as a DVD-ROM.
- the conventional regenerator can perform the reproduction process on the information recording medium of the present invention, in the same manner as a general reproduction-only information recording medium.
- content protected by a copyright system such as CSS is supplied to a general user using a recording-type information recording medium, and the supplied content is Reproduction processing can be performed by a conventional reproducing 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.
- a small-volume publication with a limited number of publications using information recording media such as DVDs, or a network of ROM content (content that is usually sold in stores on playback-only media) with appropriate copyright protection It becomes possible to realize sales through download via the Internet.
- the first recording area force in which part or all of the management information is pre-recorded in which part or all of the management information is pre-recorded.
- a conventional player general information recording / reproducing device
- a wobble signal as clock information in the first recording area where title information of DVD content is recorded, for example.
- a general information recording / reproducing apparatus is substantially the same as the information recording medium for reproduction of the present invention, which is not distinguished from the information recording medium for reproduction only, such as a DVD-ROM. Playback resumption processing (resume operation) can be performed.
- the “reproduction resumption process (resume process)” is an information reproduction apparatus such as a DVD player, for example, during the reproduction process of the information recording medium, for example, by the user during the reproduction.
- this means a process of replaying recorded information such as contents being reproduced continuously from the middle of reproduction.
- this information reproducing apparatus first (1) an address indicating a reproduction position of recorded information that was reproduced at the moment when the information recording medium was taken out during reproduction; Specific information that can identify the recording information that is being played back, such as title information of the recorded information that has been played back on the information recording medium, or (3) a data string that indicates a predetermined position at the beginning of the user data area Is stored in a storage means such as an internal memory.
- the information reproducing apparatus in the area where specific information such as title information is recorded, is (i) wobbled as clock information. It is determined whether or not a signal is detected or (ii) whether or not specific information can be reproduced.
- the information reproducing apparatus (i) a case where a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) a case where specific information such as title information can be reproduced.
- the reproduction can be resumed from the vicinity of the address indicating the reproduction position of the recorded information.
- the other part (FSlb) of the management information in the second recording area (wobbled section), the other part (FSlb) of the management information can be recorded (by the user), and the first recording
- the part of the management information (FSla) pre-recorded in the area includes position information regarding the position where the other part of the management information is recorded.
- a part of management information such as a file system is pre-recorded.
- the other part of the management information can be recorded later in time by the user, for example.
- Some of the management information includes location information regarding the location where the other part of the management information is recorded in the second recording area.
- the management information in an extended manner later in time by, for example, a recording process by the user.
- a DVD content or the like electronically distributed via a network is additionally recorded in a general information recording device
- additional recording or rewriting recording of management information such as a file system is performed in the information recording device. Therefore, the other part of the management information can be expanded and recorded in the second recording area based on the position information included in a part of the management information.
- the other part (FSlb) of the management information in the second recording area (wobbled section), includes the first recording area and the second recording area. It is recorded from a position that is a predetermined length away from the boundary position with the end (section with wobble).
- 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 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 a recording clock held by the information recording apparatus. It is possible to make it. As a result, the information recording apparatus uses the other part of the management information as It is possible to record in the second recording area with higher accuracy.
- the other part (FSlb) of the management information includes (i) a logical hierarchy (directory structure or file structure) when recording or reproducing the recording information. (Ii) information relating to the attribute (file size) of the recording information.
- the other part of the management information is more appropriately and more efficiently allocated to the second recording area based on the characteristics of the content itself in the management information and the highly scalable nature. It is possible to record.
- the part of the management information is information (identification information for identifying a file system) that retains low expandability and characteristics.
- a part of the management information is more appropriately and more efficiently stored in the first recording area based on the characteristics of the content itself and the low expandability of the management information. Pre-recording is possible.
- predetermined data (FS, dummy data, encrypted information, and other information) is further stored in the first recording area (no wobble section). Pre-recorded.
- the first recording area in which part or all of the management information is pre-recorded is further included in the user data area, for example, and the DVD content disk key (encrypted information), etc.
- the predetermined data is pre-recorded, the following effects can be obtained. That is, a general information recording / reproducing apparatus can detect a wobble signal as clock information when predetermined data such as a disc key is pre-recorded and recorded in the first recording area. Can not. Accordingly, a general information recording / reproducing apparatus is generally similar to a reproduction-only information recording medium that is not distinguished from a reproduction-only information recording medium such as a DVD-ROM.
- the “special program” refers to a program such as a program for decrypting and reproducing recorded information such as DVD content based on predetermined data such as a disc key (encrypted information).
- Pre-recorded data in the recording area is played back It means a program that performs a predetermined reproduction process on condition that it is possible.
- 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.
- the wobble signal can be detected as the clock information described above, so that general recording processing can be performed.
- the predetermined data may be configured to be the key information for encrypting the record information.
- the predetermined data may be configured to be pre-recorded at least in the user data area.
- the predetermined recording data when the predetermined recording data is included in the first recording area user data area, various types of information such as the key information used for the PC key number are used.
- This information can be pre-recorded in parallel with recording information such as video content.
- the information recording medium can be used for various various purposes in accordance with the recording information and the recording method.
- the other part of the management information can be recorded (by the user) in the second recording area (section with wobble).
- the other part (FSlb) of the management information may include pointer position information indicating the position of the predetermined data (dummy data or the like).
- predetermined data can be reproduced more quickly and accurately based on pointer position information included in the other part of the management information recorded in the second recording area. It is.
- a part of the management information may include pointer position information indicating the position of the predetermined data (dummy data or the like).
- predetermined data can be reproduced more quickly and accurately based on pointer position information included in a part of management information recorded in the first recording area. It is.
- the management information in the first recording area (no-wobble section), (i) the management information is based on a UDF (Universal Disk Format) or UDF bridge standard In addition, all of the management information (File System) is pre-recorded, and (ii) when the management information is based on the UDF standard, a part of the management information is pre-recorded.
- UDF Universal Disk Format
- UDF bridge standard all of the management information (File System) is pre-recorded, and (ii) when the management information is based on the UDF standard, a part of the management information is pre-recorded.
- a plurality of the first recording areas are provided.
- 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 wobble sections), and at least one of the first recording areas (no wobble sections) is included in 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 control is performed by, for example, an information recording apparatus described later. It is identified that the first recording area exists in the attribute management area such as the 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 of the second predetermined length (interval with wobble) 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).
- Determining means for determining whether or not the alternating arrangement is performed, and if the result of the determination is that the pre-recording is performed or the alternating arrangement is performed At the same time as recording the recording information, or before and after, To record other portions of information (F Sib), and a control means for controlling said recording means.
- the determining means in the first recording area, for example, predetermined data such as dummy data or encrypted information is stored. It is determined whether or not the pre-recording of the data is being performed. Alternatively, the determination means determines whether (ii) the first recording area having the first predetermined length and the second recording area having the second predetermined length are alternately arranged in the recording area. Is determined.
- the information recording apparatus for example, when recording information such as DVD content is distributed electronically and additionally recorded via a network, for example, the other part of the management information such as a file system is transferred to legally recordable information. It is possible to quickly and accurately perform additional recording or rewrite recording on an information recording medium determined as a recording medium.
- the information recording apparatus of the present invention can also adopt various aspects.
- an information recording method of the present invention includes an information recording medium for recording the recording information on the above-described information recording medium of the present invention (including various aspects).
- predetermined data FS, dummy data, encrypted information, or other information
- 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.
- the information recording method of the present invention can also adopt various aspects.
- a computer program for recording control of the present invention is a recording 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 can be read into a computer and executed from a recording medium such as ROM, CD-ROM, DVD-ROM, or hard disk that stores the computer program.
- a recording medium such as ROM, CD-ROM, DVD-ROM, or hard disk that stores the computer program.
- 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).
- Program instructions are clearly embodied, and the computer is caused to function as at least a part of the recording means, the determination means, and the control means.
- the computer program product of the present invention if the computer program product is read into a computer from a recording medium such as ROM, CD-ROM, DVD-ROM, or hard disk storing the computer program product, Alternatively, 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 is a computer-readable code (or computer-readable instruction) that functions as the information recording apparatus of the present invention described above. Power may be configured.
- the information recording medium of the present invention includes the first recording area and the second recording area. As a result, it is possible to keep the confidentiality of management information pre-recorded in the first recording area, for example, including encrypted information, in a highly secure state. Therefore, it becomes almost or completely impossible to create or manufacture a recordable information recording medium on which illegal copying of management information has been performed.
- a recording means for example, when recording information such as DVD contents is electronically distributed and additionally recorded via a network, for example, the other part of the management information such as the file system is transferred to a legal recording type. It is possible to quickly and accurately perform additional recording or rewrite recording on an information recording medium determined as an information recording medium.
- the information recording apparatus can be used as an information recording medium, for example, Recording information power for DVD content, etc.
- the other part of the management information such as the file system is determined as a legal recording type information recording medium. It is possible to perform additional recording or rewriting recording on a medium quickly and accurately.
- 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 shows the groove track in the optical disc according to the embodiment of the information recording medium of the present invention.
- FIG. 4 is a schematic diagram and other conceptual diagrams (FIG. 4 (a) and FIG. 4 (d)) showing clock information and address information necessary for recording obtained from wobbling.
- FIG. 5 Schematic one and other showing a wobble signal obtained from the first recording area in one example of the physical structure of the first recording area of the optical disc and the other specific example according to the embodiment of the information recording medium of the present invention.
- Conceptual diagram Fig. 5 (a) Force is also Fig. 5 (d)).
- 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 an area.
- 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 an area.
- FIG. 10 is another schematic diagram (part 2) conceptually showing the arrangement relationship with the recording area of the wobbled section which is a specific example of the area.
- FIG. 9 is a schematic diagram (FIG. 9 (a) and FIG. 9 (b)) conceptually showing one and other types of recording procedures 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 the 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.
- 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.
- 14 A flowchart showing recording or reproduction processing of recorded data by the information recording / reproducing apparatus according to 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. 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.
- an optical disc 100 is, for example, (i) a power calibration area according to the present embodiment centered on a center hole 1 on a recording surface on a disc body having a diameter of about 12 cm as in a DVD.
- 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.
- 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 in the inner periphery of the data area. Book A detailed description of the first recording area of the invention will be described later.
- the optical disc 100 is a recording medium of a dye type or phase change type that constitutes an information recording surface under the disc-shaped transparent substrate 106.
- a recording layer 107 is laminated, and a reflective layer 108 is further laminated on the lower side.
- the gnove track GT and the land track LT are alternately formed.
- the laser beam LB is irradiated onto the gnore track GT via the transparent substrate 106.
- the recording layer 107 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.
- encryption information such as a title key based on an encryption system such as CSS
- signal content encrypted with the encryption information such as the title key are recorded. Is done. More specifically, the title information such as the title key is received by the encryption information such as the disc key or the disc key set.
- the present invention is not particularly limited to the 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, Is constituted by a Land Pre Pit Address.
- the recording area of the optical disc 100 is (i) the power calibration area PCA as described above from the inner peripheral side to the outer peripheral side.
- a recording management area RMA (iii) a control data zone, a lead area 101 having a CDZ, (iv) a data area 102, and (V) a lead-out area 103.
- Various attribute management information may be recorded in the RMA or CDZ.
- the attribute management information refers to (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 types of information for managing the information recording medium such as information for specifying the position.
- an optical pickup when the address that can uniquely identify the position of the recording area of the optical disc 100 described above is, for example, an LBA or a physical sector number (sector number), an optical pickup
- the address in the recording area of the optical disc 100 may be increased as the force S moves from the inner circumference side to the outer circumference side (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, an optical pickup of an information recording / reproducing apparatus, which will be described later, The address in the recording area of the optical disc 100 may decrease as you move to (see the thin dotted line in Fig. 3).
- FIG. 4 is a schematic diagram and other conceptual diagrams showing clock information and address information necessary for recording obtained from wobbling of a gnollary 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)).
- the groove track GT is oscillated with a constant amplitude and a spatial frequency. That is, group traffic
- the GT is wobbling, and the wobble 109 period 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.
- the recording address on the optical disk is called absolute time in pre-groove (ATIP) signal due to subtle frequency changes. It is built in as les.
- IATIP pre-groove
- 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 apparatus such as a disk drive to write in the data area, for example, in addition to the recording parameters such as the optimum recording power of the laser beam and the recording strategy, The recording clock and recording address to be used 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 from the first recording area 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, at the rear of the first recording area, the amplitude of the wobble is increased to cause AM. In particular, it is preferable to gradually change when the amplitude starts to decrease and when the amplitude starts to increase. This is because the manufacturing process can be further simplified. More details Therefore, the comparator in the information recording / reproducing apparatus described later cannot detect the wobble signal from the band pass filter.
- a wobble signal WB2 as shown in Fig. 5 (b) can be obtained from the first recording area.
- the first recording area may be configured. More specifically, in all areas of the first recording area, the wobble may be configured to be almost or completely eliminated so that the wobble signal WB2 cannot be obtained.
- more sophisticated 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 specific example described above.
- a wobble signal WB3 as shown in FIG. 5 (c) is obtained from the first recording area.
- the first recording area may be configured.
- the wobble frequency may be modulated from ⁇ to ⁇ and FM (Frequency Modulation) in all areas of the first recording area, for example.
- FM Frequency Modulation
- the frequency may be increased to 2 times, 5 times, etc., or may be reduced to 1/2 times, 1/5 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.
- a wobble signal WB4 as shown in FIG. 5 (d) is obtained from the first recording area.
- the first recording area may be configured.
- At least one of the wobble frequency, amplitude, and phase may be modulated in the first recording area.
- the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the band pass filter, as in the above specific example.
- the recording track itself such as a groove track is not formed in advance in the first recording area. Also good.
- the information is the same as the specific example described above.
- the comparator in the information recording / reproducing apparatus cannot detect the wobble signal from the bandpass filter.
- 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 includes a wobbled section, a wobbleless section, and a wobbled section from the inner circumference side to the outer circumference side of the recording area.
- a file system FSla which is a specific example of the management information of the present invention, is pre-recorded in advance from, for example, the start point of a section without wobble.
- This starting point may be specified by, 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.
- the start position may be set to “24 (mm)”, for example, and the end position may be set to “28 (mm)”, for example.
- a judgment area for determining whether or not playback of recorded information is permitted first is accessed.
- the area is included in the recording area of the wobble-free section in which part or all of the management information is pre-recorded, the following effects can be obtained. That is, since the wobble is not preformatted in the recording area of the no-wobble section, the conventional player (general information recording / reproducing device) cannot detect the wobble. Therefore, the general information recording / reproducing device at least determines the wobble. In the reproduction process in the 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. 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.
- this 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 removed during reproduction, (2) It is possible to identify the recording information being played back, such as the title information of the recorded information being played back on the information recording medium, or (3) a data string indicating a predetermined position existing at the beginning of the user data area.
- the specific information is stored in a storage means such as an internal memory.
- the information reproducing apparatus for example, (i) whether or not a wobble signal is detected as clock information in an area where specific information such as title information is recorded. ⁇ Or (ii) Whether or not specific information can be reproduced is determined.
- the information reproducing apparatus (i) a case where a wobble signal is not detected as clock information in an area where the specific information is recorded, or (ii) a case where specific information such as title information can be reproduced.
- the reproduction can be resumed from the vicinity of the address indicating the reproduction position of the recorded information.
- FIG. 7 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 another schematic diagram (part 1) conceptually showing the arrangement relationship between the recording area of the wobbled section as a specific example of the recording area.
- symbol is attached
- the encryption information such as the file system FSla and the disk key, for example, from the start point in the no-wobble section.
- Predetermined data including information is pre-recorded.
- a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a recording area of a wobbleless section where predetermined data such as a disc key is pre-recorded.
- a general information recording / reproducing apparatus is generally similar to a reproduction-only information recording medium that is not distinguished from a reproduction-only information recording medium such as a DVD-ROM. It is possible to execute the above-mentioned special program such as an application corresponding to a read-only information recording medium. This special program may be pre-recorded in the recording area of the section without wobble, or may be recorded in the recording area other than the recording area of the section without wobble.
- a general information recording / reproducing apparatus cannot detect a wobble signal as clock information in a recording area in a non-wobbled section, and therefore pre-records in a recording area in a non-wobbled section. It is impossible to rewrite predetermined data such as encrypted information. Therefore, for example, copyright protection of the information recording medium can be realized.
- the wobble signal can be detected as the clock information described above, so that general recording processing can be performed.
- FIG. 8 shows a file system that is a specific example of the management information of the present invention, a recording area of a wobbleless section that 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.
- a part of management information such as a file system FSla is pre-recorded in the recording area of the section without wobble.
- a part of the management information may be information having a low-scaling property such as identification information for identifying a file system.
- Management information A part of FSla includes position information related to the position where the other part FSlb of the management information in the recording area of the wobbled section described later is recorded (see the arrow in FIG. 8).
- the other part FSlb of the management information can be recorded later in time by the user, for example.
- the other part of the management information FSlb should be highly extensible information, that is, information related to the logical hierarchy when recording or reproducing recorded information, such as directory structure, file structure, anchor point, etc. Also good.
- the management information in an extended manner later in time by, for example, a recording process by the user.
- a 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
- a file is recorded in the general information recording device. Since the management information FSlb of the system, etc. is recorded and rewritten, the other FSlb of the management information is recorded in the recording area of the wobbled section based on the location information included in the part of the management information FSla. Is possible.
- FIG. 9 is a schematic diagram (FIG. 9 (a) and FIG. 9 (b)) conceptually showing one and other types of recording procedures of the file system which is a specific example of the management information of the present invention. is there.
- 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 is that the entire file system is stored in the recording area of the non-wobbled section. You can pre-record. In particular, for example, when a small number of special publications are recorded as content, additional recording or rewriting recording of the file system FS is not generally performed, so the entire file system FS is pre-recorded. It is preferable to be done.
- One type of file system recording procedure is suitable for recording file systems such as UDF (Universal Disk Format) and UDF bridge. The UDF version may be “1.02” or higher than “1.5” or “2.0”.
- FIG. 9 another type of file system recording procedure (ie, business model—part 2_) is that a part of the file system is recorded as a recording area in a non-wobbled section. You can also pre-record it.
- the general information recording is performed. Since the file system FSlb is additionally recorded or rewritten on the device, the other FSlb of the management information is expanded to the recording area of the wobbled section based on the location information included in the part of the management information FS la. Recording is possible.
- Other types of file system recording procedures are suitable for recording file systems such as UDF.
- the file name to be recorded and the file size can be specified, for example, Volume Recognition Sequence, UDF & ISO9660 volume structure data, which is composed of AVDP, Volume Descriptor Sequence, etc., is pre-recorded in advance in the recording area of the pre-recorded area, seashell, and no wobble section.
- file data is recorded, for example, File Set Descriptor, Root Directory ICB, and Root Directory file are additionally recorded and rewritten, so that the file name and file size are additionally recorded and rewritten. It is possible.
- the file name to be recorded and the file size can be specified after recording the file data.
- the Volume Recognition sequence "UDF & ISO9660 volume structure data generated by V, AVDP, Volume Descriptor sequence, etc. is originally a Data recordable area, In other words, in the recording area of the wobbled section, recording is performed so that additional recording or rewriting recording is possible. Therefore, if this UD F & ISO9660 volume structure data, which can specify the file name and file size to be recorded, is pre-recorded, it will not be possible to record or rewrite the file name or file size. End up. Therefore, in the UDF bridge, one type of recording procedure of the file system for pre-recording the entire file system shown in FIG. It is preferable to apply 1-) business model.
- 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 contents of the key number. More specifically, the media ID is recorded in NBCA by laser cutting. Encryption information Keyl such as a disc key is recorded in the control data zone CDZ. The 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. Further, the key content received from the information distribution apparatus 300 is recorded on the optical disc 100.
- the information distribution apparatus 300 receives the media ID transmitted by the information recording apparatus 200. Generates key information such as a disc key corresponding to the received media ID, and encryption information Key2 such as a title key. Based on the generated encryption information Keyl and Key2, encryption processing such as encryption 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 the encryption in ⁇ ⁇ ⁇ . May be.
- 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). For example, through a router equipped with a firewall application for prevention).
- 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, through a router equipped 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 S101 when the optical disc 100 is loaded, first, the information recording described later is performed. Under the control of a central processing unit (CPU) 250 of the apparatus, a seek operation is performed by the optical pickup 202 (step S101).
- CPU central processing unit
- step S102 it is determined whether or not the optical disc 100 is an optical disc for distributing content.
- step S102 various information necessary for the recording operation on the optical disc 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), under the control of the CPU 250, from the optical disc 100, for example, from the NBCA (Narrow Burst Cutting Area), the optical disc 100 is concerned.
- a unique media ID is obtained (step S105).
- the acquired media ID is encrypted based on SSL or the like, and is transmitted to the information distribution apparatus 300 such as a server on the network, for example (step S106).
- step S102 if it is determined that the content is not an optical disc to be distributed (step S102: No), and the determination in step S104 indicates that the optical disc 100 has 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 received media ID decrypted by SSL or the like is decrypted (step S202).
- encrypted information Keyl such as a disc key corresponding to the decrypted media ID and signature key information Key2 such as a title key are generated (step).
- step S203 the content and file system distributed using the generated encrypted information Keyl and Key2 are encrypted by a predetermined encryption system.
- the encrypted content and file system encrypted based on the encryption system using the generated key information information Keyl and Key2 are further converted to SSL. And the like are distributed to the information recording apparatus 200 (step S 205). More specifically, encrypted content encrypted by SSL or the like and file system attributes, so-called CCI (Copy Control Information), cannot be played during distribution. Set to the attribute of Never Copy.
- 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 distribution apparatus (step S107).
- the information recording apparatus 200 decrypts the received encrypted content and file system using SSL or the like (step S108).
- the signature content and the file system that have been signed by the encrypted information Keyl and Key2 are recorded as they are on the optical disc 100 without being decrypted (step S109).
- the contents of the file contents and the file system encrypted according to a predetermined code system are not pre-recorded, and the address of the last recording area of the lead-in area 101 is recorded. Is started at the address of the recording area of the read-out area 103 prerecorded. If the recorded content and file system recording power are not recorded up to the address of the recording area of the pre-recorded lead-out area 103, the buffer data should be recorded up to this address.
- the recorded content and file system recording power are not recorded up to the address of the recording area of the pre-recorded lead-out area 103, the buffer data should be recorded up to this address.
- the buffer data may be written in advance and sold, or the information recording device 200 may be It may be newly written at the time of recording.
- the distribution system replaces the encrypted information Keyl and Key2 in the exchange of information between the information recording apparatus 200 and the information distribution apparatus 300 via the external network 400.
- 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 according to 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, for example, modulating the wobble data DW.
- 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 is composed of an addition circuit that adds the divided read signals la, lb, lc, and Id and outputs a sum read signal SRF.
- the total read signal SRF is a signal indicating the length of the recording mark.
- the pit data demodulation circuit 211 reproduces the pit data DP based on the total read signal SRF and also 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 then stored in the nonophor 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 + ld)-(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 pushnore signal is centered on the amplitude.
- the push-pull signal is negative with respect to the amplitude center.
- 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.
- the pushnore 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 passband of the bandpass filter 223 is set so that the wobble signal WB obtained by, for example, modulating the wobble data DW during recording can be extracted from the push-pull signal. Accordingly, the band-nos 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.
- CPU 250 controls one component of 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 S 101a).
- 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).
- step S104 whether or not predetermined data such as dummy data is pre-recorded in the recording area of the section without wobble, for example, under the control of the CPU 250 Is determined (step S104).
- step S104a if it is determined that the wobble is intermittently preformatted in the control data zone CDZ (step S103a: Yes), or predetermined data is prerecorded in the recording area of the section without wobble.
- step S104a If it is determined that the data is valid (step S104a: Yes), it is authenticated as a legitimate information recording medium compliant with an encryption system such as CSS (step S105a).
- step S 106a it is determined whether or not recording information such as DVD content is to be recorded under the control of the CPU 250 (step S 106a).
- 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 S106a determines whether or not recording information such as DVD content is reproduced under the control of the CPU 250 Is determined (step Sl l la). 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 Sl lOa Yes
- step Sl lOa Yes
- Step S103a If it is determined that there is no pre-recording (step S103a: No), or alternatively, 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 no-wobble section ( Step S104a: No), under the control of CPU250, a series of The recording process or recording process of the recording information is finished.
- 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
- a general information recording apparatus obtains clock information and address information in a recording area of a wobbled section having a predetermined length when control information is preformatted, and the information recording apparatus Can be synchronized (locked) with the recording clock held by the.
- 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 indicates the position of predetermined data such as ⁇ ⁇ ⁇ information or dummy data. Includes pointer position information such as address.
- the predetermined data can be reproduced more quickly and accurately based on the pointer position information included in the other part FSlb of the management information recorded in the recording area of the section with wobble.
- the portion of the predetermined data that is not specified by the pointer position information may be managed as “Un_allocated d Area” by the file system.
- a part of 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 the recording area of the no-wobble section exists in, for example, the control data zone. Based on this identification, the information recording medium has a part of the management information or a part of the management information in the recording area of the wobbleless section. It is possible to quickly and accurately determine that the information recording medium is entirely pre-recorded.
- a plurality of wobbled section recording areas and a plurality of wobbled section recording areas are arranged randomly (randomly). You can do it.
- 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.
- 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.
- a write-once or rewritable optical disc is described as an example of an information recording medium
- a recorder or player related to an optical disc is an example of an information recording device. Is not limited to the optical disc, the recorder or player of the optical disc, and various information recording media compatible with high-density recording or high transfer rates, and the recorder or player of the various information recording media. Applicable.
- An information recording medium, an information recording apparatus and method, and a 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.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007542683A JPWO2007049743A1 (ja) | 2005-10-27 | 2006-10-27 | 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 |
US12/091,837 US20090268594A1 (en) | 2005-10-27 | 2006-10-27 | Information recording medium, information recording device and method, and computer program |
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JP2005-313559 | 2005-10-27 | ||
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PCT/JP2006/321497 WO2007049743A1 (ja) | 2005-10-27 | 2006-10-27 | 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 |
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US (1) | US20090268594A1 (ja) |
JP (1) | JPWO2007049743A1 (ja) |
CN (1) | CN101297365A (ja) |
WO (1) | WO2007049743A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009011049A1 (ja) * | 2007-07-18 | 2009-01-22 | Pioneer Corporation | 情報記録媒体、ドライブ装置、配信課金管理用のサーバ装置、コンテンツサーバ装置、及び仲介装置 |
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JP2013037652A (ja) * | 2011-08-11 | 2013-02-21 | Sony Corp | 情報処理装置、および情報処理方法、並びにプログラム |
Citations (3)
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JPH09251638A (ja) * | 1996-03-13 | 1997-09-22 | Ricoh Co Ltd | 情報記録媒体及び情報記録装置 |
WO1999065034A2 (en) * | 1998-06-10 | 1999-12-16 | Koninklijke Philips Electronics N.V. | A method for storing audio-centered information using higher level audio files and lower level audio item indicating files, a device for reading and/or storing such information and a record carrier |
JP2001043533A (ja) * | 1999-05-21 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 光ディスク並びに光ディスクの記録再生装置及び記録方法 |
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JP3089497B2 (ja) * | 1991-08-20 | 2000-09-18 | ソニー株式会社 | 記録再生装置及び再生装置 |
JPH1079165A (ja) * | 1996-09-03 | 1998-03-24 | Kenwood Corp | ディスク記録再生装置 |
US6581167B1 (en) * | 1999-02-01 | 2003-06-17 | Matsushita Electric Industrial Co., Ltd. | Information recording medium, information recording method and information recording/reproduction system |
US6597649B2 (en) * | 1999-05-21 | 2003-07-22 | Matsushita Electric Industrial Co., Ltd. | Recordable optical disk |
JP4060022B2 (ja) * | 2000-02-16 | 2008-03-12 | パイオニア株式会社 | 情報記録媒体、その製造装置及びその製造方法、ならびに情報記録媒体への信号記録装置及びその信号記録方法 |
JP4278855B2 (ja) * | 2000-11-01 | 2009-06-17 | パイオニア株式会社 | 書換え可能型光ディスクならびにその製造方法および製造システム |
WO2006068334A1 (en) * | 2004-12-21 | 2006-06-29 | Lg Electronics Inc. | Recording medium, method and apparatus for managing a file system information of the recording medium |
-
2006
- 2006-10-27 CN CN200680040304.4A patent/CN101297365A/zh active Pending
- 2006-10-27 US US12/091,837 patent/US20090268594A1/en not_active Abandoned
- 2006-10-27 WO PCT/JP2006/321497 patent/WO2007049743A1/ja active Application Filing
- 2006-10-27 JP JP2007542683A patent/JPWO2007049743A1/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09251638A (ja) * | 1996-03-13 | 1997-09-22 | Ricoh Co Ltd | 情報記録媒体及び情報記録装置 |
WO1999065034A2 (en) * | 1998-06-10 | 1999-12-16 | Koninklijke Philips Electronics N.V. | A method for storing audio-centered information using higher level audio files and lower level audio item indicating files, a device for reading and/or storing such information and a record carrier |
JP2001043533A (ja) * | 1999-05-21 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 光ディスク並びに光ディスクの記録再生装置及び記録方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009011049A1 (ja) * | 2007-07-18 | 2009-01-22 | Pioneer Corporation | 情報記録媒体、ドライブ装置、配信課金管理用のサーバ装置、コンテンツサーバ装置、及び仲介装置 |
Also Published As
Publication number | Publication date |
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JPWO2007049743A1 (ja) | 2009-04-30 |
US20090268594A1 (en) | 2009-10-29 |
CN101297365A (zh) | 2008-10-29 |
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