JP2004241006A - Backup disk creation method, program and recording medium, as well as information recording system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a backup disk creating method capable of creating a normal duplicate of a hybrid disk. <P>SOLUTION: Prior to copying of contents information being recorded on the hybrid disk, a judgment is made (step 423) whether an information recording medium is suitable or not for the backup disk, in accordance with the judgment reference preset on the basis of the substrate information of the hybrid disk and the substrate information of the information recording medium for backup. By this procedure, the information recording medium for backup, in which the contents information is normally reproducible even though a protection using the substrate information peculiar to the hybrid disk is applied to the contents information, can be sorted. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for creating a backup disc, a program and a recording medium, and an information recording system, and more particularly, to a method for creating a backup disc of a hybrid disc, and a program used in an information processing apparatus for controlling an information recording apparatus. And an information recording system provided with an information recording device and an information processing device.
[0002]
[Prior art]
Personal computers (hereinafter abbreviated as "PCs") have been able to handle AV (Audio-Visual) information such as music and video as their functions have improved. Since the information amount of these AV information is very large, large-capacity optical discs such as CD (compact disc) and DVD (digital versatile disc) have been attracting attention as recording media. 2. Description of the Related Art Optical disk devices have become widespread as information recording devices for recording information on optical disks.
[0003]
Conventionally, so-called content information such as application software, still images, and moving images is generally recorded (stamped) on a medium such as a CD-ROM and distributed or sold. In recent years, as a CD-type optical disk, for example, as shown in FIG. 9, it has a read-only area (hereinafter also referred to as “ROM section”) and a writable area or rewritable area (hereinafter also referred to as “RAM section”). A hybrid disc has been developed, and it has been proposed to distribute or sell the content information in advance in the ROM section of the hybrid disc as an alternative medium to the CD-ROM. In the following, in order to distinguish from a hybrid disc, existing CD optical discs such as a CD-ROM, a CD-R (CD-recordable), and a CD-RW (CD-rewritable) are collectively referred to as “existing existing”. CD ”.
[0004]
In some hybrid discs, a first session is stamped as a ROM section and an area after that is treated as a RAM section in order to ensure compatibility with existing CDs. As a result, even in a system that cannot recognize a hybrid disc, the hybrid disc can be handled as an existing CD recorded in a multi-session system, so that at least read compatibility can be ensured. Further, as one of methods for distinguishing a hybrid disc from an existing CD, a method of stamping information indicating that the disc is a hybrid disc at a predetermined position on the hybrid disc has been proposed.
[0005]
In addition, when a user purchases a medium including content information, a copy (backup disk) of the purchased medium (hereinafter, also referred to as “original media”) is created in preparation for a situation in which the content information cannot be reproduced due to, for example, damage to the medium. However, there are many cases where original media is stored without being used.
[0006]
Therefore, various methods and apparatuses for creating a copy of a medium have been proposed (for example, see Patent Documents 1 to 3).
[0007]
[Patent Document 1]
JP-A-11-328846
[Patent Document 2]
JP 2001-118331 A
[Patent Document 3]
JP-A-2002-190157
[0008]
[Problems to be solved by the invention]
However, when a hybrid disc is used as a backup disc for a hybrid disc, a recorded medium is copied to a partially recorded medium. According to the methods and apparatuses described in Patent Documents 1 to 3 described above, Since such a case is not taken into account, there is a possibility that information cannot be linked between the ROM section and the RAM section on the backup disk, and the information cannot be correctly reproduced.
[0009]
When a CD-R or CD-RW is used as a backup disk, a backup disk is created when, for example, the content information is protected by using a hybrid disk-specific board information (disk information) that cannot be copied. In some cases, content information could not be reproduced.
[0010]
The present invention has been made under such circumstances, and a first object of the present invention is to provide a backup disc creation method and an information recording system capable of creating a normal copy of a hybrid disc.
[0011]
Further, a second object of the present invention is a program that can be executed by an information processing apparatus that constitutes an information recording system together with an information recording apparatus and that can create a normal copy of a hybrid disc, and a recording medium on which the program is recorded. To provide a medium.
[0012]
[Means for Solving the Problems]
The invention according to claim 1 is a method for creating a backup disk of a hybrid disk having a read-only area and a writable or rewritable area, wherein a determination criterion and a backup criterion are set in advance based on substrate information of the hybrid disk. A backup disk creation method including a first step of determining whether or not the information storage medium is suitable for a backup disk based on substrate information of an information storage medium for use.
[0013]
According to this, for example, with respect to the board information related to protection, when the board information of the backup information recording medium and the board information of the hybrid disc match, it is determined that the information recording medium is suitable for the backup disc. Is determined in advance as described above. Then, prior to copying the content information recorded on the hybrid disc, it is determined whether the information recording medium for backup is suitable for the backup disc (first step), and the board information unique to the hybrid disc is added to the content information. Even if the used protection is applied, it is possible to select a backup information recording medium that can normally reproduce the content information. That is, as a result, a normal copy of the hybrid disc can be created.
[0014]
In this case, various criteria can be considered as the determination criterion. For example, as in the backup disk creation method according to claim 2, the determination criterion is the substrate information of the hybrid disk and the substrate information of the information recording medium. In the above, when predetermined information included in each of the board information matches each other, the information recording medium may be a criterion for determining that the information recording medium is suitable for a backup disk.
[0015]
In this case, as in the backup disk creation method according to claim 3, the predetermined information includes at least one of a lead-in start time, a lead-out start time, and a parameter of a recording strategy. Can be.
[0016]
In each of the backup disk creation methods according to claims 1 to 3, when the information recording medium has a read-only area and a writable or rewritable area as in the backup disk creation method according to claim 4, As a result of the determination, when it is determined that the information recording medium is suitable for a backup disk, the information is recorded in each of the read-only areas in the read-only area of the hybrid disc and the read-only area of the information recording medium. A second step of judging whether or not the specific information items coincide with each other; and, as a result of the judgment in the second step, when the specific information recorded in each of the read-only areas coincide with each other, Write or write information recorded in the writable or rewritable area of the information recording medium. It can be further containing; a third step of copying the example region.
[0017]
In this case, when the specific information recorded in each of the read-only areas does not match each other as a result of the determination in the second step, as in the backup disk creating method according to claim 5, the information recording medium is used. A fourth step of determining whether or not the information recorded in the read-only area is predetermined dummy data; and, as a result of the determination in the fourth step, the information recorded in the read-only area of the information recording medium. A fifth step of copying the information recorded in the read-only area and the writable or rewritable area of the hybrid disc to the writable or rewritable area of the information recording medium, respectively, when the information is predetermined dummy data; ; May be further included.
[0018]
According to a sixth aspect of the present invention, there is provided a program for use in an information processing apparatus which constitutes an information recording system together with an information recording apparatus, wherein the program is used for a backup disc creation request for a hybrid disc having a read-only area and a writable or rewritable area. A first procedure for acquiring substrate information of the information recording medium for backup in response to the information; based on a criterion preset based on the substrate information of the hybrid disc and the substrate information of the information recording medium; And a second procedure for determining whether or not the information recording medium is suitable for a backup disk.
[0019]
According to this, when the program of the present invention is loaded into the main memory and the start address thereof is set in the program counter, the information processing apparatus sets a hybrid disk backup disk having a read-only area and a writable or rewritable area. In response to the creation request, substrate information of the information recording medium for backup is obtained, and the information recording medium is determined based on a predetermined criterion based on the substrate information of the hybrid disc and the substrate information of the information recording medium. Determine if it is suitable for a backup disk. That is, according to the program of the present invention, it is possible to cause the information processing apparatus to execute the backup disk creation method according to the first aspect of the present invention, thereby enabling a normal copy of the hybrid disk to be created. Become.
[0020]
In this case, various criteria can be considered as the determination criterion. For example, as in the program according to claim 7, the determination criterion is based on the board information of the hybrid disc and the board information of the information recording medium. When predetermined information included in each piece of substrate information matches each other, the information recording medium may be a criterion for determining that the information recording medium is suitable for a backup disk.
[0021]
In each of the programs according to claims 6 and 7, when the information recording medium has a read-only area and a writable or rewritable area as in the program according to claim 8, as a result of the determination, the information When it is determined that the recording medium is suitable for a backup disk, whether the specific information recorded in each of the read-only areas in the read-only area of the hybrid disk and the read-only area of the information recording medium match each other. A third step of determining whether or not the specific information recorded in each of the read-only areas matches each other as a result of the determination in the third step; A fourth procedure of copying the written information to a writable or rewritable area of the information recording medium. It may be possible to further perform the information processing apparatus.
[0022]
In this case, as in the case of the program according to claim 9, when the specific information recorded in each of the read-only areas does not match each other as a result of the determination in the third procedure, the read-only information of the information recording medium is read. A fifth procedure for determining whether or not the information recorded in the area is predetermined dummy data; and, as a result of the determination in the fifth procedure, the information recorded in the read-only area of the information recording medium is determined. In the case of predetermined dummy data, a sixth step of copying information recorded in the read-only area and the writable or rewritable area of the hybrid disc to the writable or rewritable area of the information recording medium, respectively. The information processing apparatus can be further executed.
[0023]
According to a tenth aspect of the present invention, there is provided a computer-readable recording medium in which the program according to any one of the sixth to ninth aspects is recorded.
[0024]
According to this, since the program according to any one of claims 6 to 9 is recorded, a normal copy of the hybrid disc can be created by causing the computer to execute the program.
[0025]
The invention according to claim 11, which is an information recording system for recording information, comprising: an information recording device for recording information; input means for inputting various requests to the information recording device; In response to a request for creating a backup disc of a hybrid disc having a read-only area and a writable or rewritable area input through the means, a judgment criterion and a backup criterion set in advance based on the substrate information of the hybrid disc are provided. A propriety judging means for judging whether or not the information recording medium is suitable for a backup disc based on substrate information of the information recording medium, and permitting the backup disc creation request based on a judgment result of the propriety judging means. An information processing apparatus having a processing means for determining whether or not the information is recorded. It is a non.
[0026]
According to this, when a backup disk creation request for a hybrid disk is input via the input unit, the suitability determination unit determines whether the information recording medium for backup is suitable for the backup disk. Then, the processing unit determines whether to permit the backup disk creation request based on the result of the determination by the suitability determination unit. Therefore, for example, with respect to the board information related to protection, when the board information of the backup information recording medium and the board information of the hybrid disc match, it is determined in advance that the information recording medium is determined to be suitable for the backup disc. Set criteria. Then, when the propriety judgment is made, even if the content information is protected using the hybrid disc-specific board information, it is possible to select a backup information recording medium that can normally reproduce the content information. it can. That is, as a result, a normal copy of the hybrid disc can be created.
[0027]
In this case, as in the information recording system according to claim 12, the information recording medium has a read-only area and a writable or rewritable area, and the processing unit determines a result of the determination by the suitability determination unit. When it is determined that the information recording medium is suitable for a backup disc, the specific information recorded in each of the read-only areas in the read-only area of the hybrid disc and the read-only area of the information recording medium is First determining means for determining whether they match each other; and as a result of the determination by the first determining means, when the specific information recorded in each of the read-only areas matches each other, the backup disk And first copying means for permitting the creation request.
[0028]
In this case, as in the information recording system according to claim 13, the processing unit determines that the specific information recorded in each of the read-only areas does not match each other as a result of the determination by the first determining unit. Second determining means for determining whether or not information recorded in the read-only area of the information recording medium is predetermined dummy data; and, as a result of the determination by the second determining means, And second copying means for permitting the backup disk creation request when the information recorded in the read-only area of the recording medium is predetermined dummy data.
[0029]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a schematic configuration of an information recording system 10 according to an embodiment of the present invention.
[0030]
The information recording system 10 shown in FIG. 1 includes an optical disk device 20 as an information recording device and a host 80 as an information processing device that controls the optical disk device 20. Note that the connection lines in FIG. 1 show typical flows of signals and information, and do not represent all of the connection relationships between the blocks.
[0031]
The optical disk device 20 includes a spindle motor 22, an optical pickup device 23, a laser control circuit 24, an encoder 25, a motor driver 27, a reproduction signal processing circuit 28, a servo controller 33, for rotating and driving an optical disk 15 as an information recording medium. A buffer RAM 34, a buffer manager 37, an interface 38, a ROM 39, a CPU 40, a RAM 41, and the like are provided. Note that the connection lines in FIG. 1 show typical flows of signals and information, and do not represent all of the connection relationships between the blocks. It is assumed that the optical disk device 20 is compatible with an information recording medium conforming to a CD standard as an example.
[0032]
The optical pickup device 23 is a device for irradiating the recording surface on which the spiral or concentric tracks of the optical disk 15 are formed with laser light and receiving the reflected light from the recording surface. The optical pickup device 23 includes, as an example, a light source unit 51, a collimator lens 52, a beam splitter 54, an objective lens 60, a detection lens 58, a light receiver 59, and a driving system (a focusing actuator, a tracking actuator, And a seek motor (both not shown).
[0033]
The light source unit 51 includes a semiconductor laser (not shown) as a light source that emits a light beam having a wavelength of 780 nm. In the present embodiment, the direction of maximum intensity emission of the light beam emitted from the light source unit 51 is defined as the + X direction.
[0034]
The collimating lens 52 is disposed on the + X side of the light source unit 51, and converts the light beam emitted from the light source unit 51 into substantially parallel light. The beam splitter 54 is disposed on the + X side of the collimator lens 52 and splits the return light from the optical disc 15 in the −Z direction. The objective lens 60 is disposed on the + X side of the beam splitter 54, condenses the light beam transmitted through the beam splitter 54, and forms a light spot on the recording surface of the optical disk 15.
[0035]
The detection lens 58 is disposed on the −Z side of the beam splitter 54, and focuses the return light split by the beam splitter 54 on a light receiving surface of the light receiver 59. The light receiver 59 outputs a plurality of signals including wobble signal information, reproduction data information, focus error information, track error information, and the like to the reproduction signal processing circuit 28, similarly to a normal optical pickup device.
[0036]
As shown in FIG. 3, the reproduction signal processing circuit 28 includes an I / V amplifier 28a, a servo signal detection circuit 28b, a wobble signal detection circuit 28c, an RF signal detection circuit 28d, a decoder 28e, and the like.
[0037]
The I / V amplifier 28a converts a current signal, which is an output signal of the light receiver 59, into a voltage signal. The servo signal detection circuit 28b detects a servo signal (a focus error signal or a track error signal) based on the output signal of the I / V amplifier 28a, and outputs it to the servo controller 33. The wobble signal detection circuit 28c detects a wobble signal based on the output signal of the I / V amplifier 28a. The RF signal detection circuit 28d detects an RF signal based on the output signal of the I / V amplifier 28a.
[0038]
The decoder 28e extracts ATIP (Absolute Time In Pregroove) information and a synchronization signal from the wobble signal detected by the wobble signal detection circuit 28c. The ATIP information extracted here is output to the CPU 40, and the synchronization signal is output to the encoder 25. Further, the decoder 28e performs decoding processing, error correction processing, and the like on the RF signal detected by the RF signal detection circuit 28d, and then stores the reproduced data in the buffer RAM 34 via the buffer manager 37. When the reproduction data is music data, a signal from the decoder 28e is output to an external audio device or the like via a D / A converter (not shown).
[0039]
Returning to FIG. 1, the servo controller 33 generates a control signal for correcting a focus shift based on the focus error signal from the reproduction signal processing circuit 28, and corrects the track shift based on the track error signal. Generate control signals. Each control signal is output from the servo controller 33 to the motor driver 27.
[0040]
The motor driver 27 drives a tracking actuator and a focusing actuator of the optical pickup device according to each control signal from the servo controller 33. That is, tracking control and focus control are performed by the servo signal detection circuit 28b, the servo controller 33, and the motor driver 27. The motor driver 27 drives the spindle motor 22 and the seek motor of the optical pickup device based on an instruction from the CPU 40.
[0041]
The encoder 25 extracts the data stored in the buffer RAM 34 via the buffer manager 37 based on an instruction from the CPU 40, performs data modulation, adds an error correction code, and the like, and generates a write signal to the optical disk 15. At the same time, the signal is output to the laser control circuit 24 in synchronization with the synchronization signal from the reproduction signal processing circuit 28.
[0042]
The laser control circuit 24 outputs a control signal for controlling the semiconductor laser output of the optical pickup device 23 based on a write signal from the encoder 25 and an instruction from the CPU 40.
[0043]
The interface 38 is a bidirectional communication interface with the host 80, and conforms to standard interfaces such as ATAPI (AT Attachment Packet Interface), SCSI (Small Computer System Interface), and USB (Universal Serial Bus).
[0044]
The ROM 39 stores a program described in a code decodable by the CPU 40. The CPU 40 controls the operation of each unit according to the program stored in the ROM 39 and temporarily stores data and the like necessary for the control in the RAM 41.
[0045]
The host 80 includes a main controller 82, a RAM 83, a hard disk (HDD) 84 as a recording medium, an input device 85 as input means, a display device 86, an interface 87, and the like. Each of them is connected via a common bus 89.
[0046]
The main controller 82 includes a microcomputer (hereinafter, referred to as “MPU”) 82a, a main memory 82b, etc., controls the entire host 80, and temporarily stores data and the like necessary for control in the RAM 83. save.
[0047]
The interface 87 is a communication interface conforming to the same standard as the interface 38 of the optical disk device, and is connected to the interface 38. The connection between the interfaces may be not only a cable connection using a communication line such as a communication cable (for example, a SCSI cable), but also a wireless connection using infrared rays or the like.
[0048]
A program including a program according to the present invention (hereinafter also referred to as a “backup disk creation program”) written in a code readable by the MPU 82a and started in response to a hybrid disk backup disk creation request described later is stored in the HDD 84. Is stored.
[0049]
The display device 86 includes a display unit (not shown) using a CRT, a liquid crystal display (LCD), a plasma display panel (PDP), or the like, and displays various types of information based on instructions from the MPU 82a.
[0050]
The input device 85 includes, for example, at least one input medium (not shown) of a keyboard, a mouse, a tablet, a trackball, a light pen, and a touch panel, and notifies the MPU 82a of information input by a user. The information from the input medium may be input by a wireless method. Further, as an integrated device of the display device 86 and the input device 85, for example, there is a CRT with a touch panel.
[0051]
A lead-in start time, a lead-out start time, recording strategy parameters, and the like are recorded in advance on the optical disc 15 as substrate information. As the lead-in start time, a time unique to each manufacturer is set as a vendor code, and as the lead-out start time, a value corresponding to the recording capacity is set. These pieces of substrate information cannot be copied to another optical disk. In the case of a hybrid disc, information indicating that the disc is a hybrid disc is described in a disc application code (Disc Application Code) included in the ATIP information as one of the board information.
[0052]
Here, in the information recording system 10 configured as described above, a processing operation when recording data on the optical disk 15 in response to a user request will be briefly described.
[0053]
When the user specifies data via the input device 85 and instructs a recording request, the MPU 82a issues a command for requesting recording (hereinafter abbreviated as a “recording request command”). This recording request command is transmitted to the optical disk device 20 via the interface 87.
[0054]
When the optical disk device 20 receives the recording request command from the host 80 via the interface 38, it shifts to a recording operation. The outline of the recording operation in the optical disk device 20 will be described below.
[0055]
The CPU 40 outputs a control signal for controlling the rotation of the spindle motor 22 to the motor driver 27 based on the recording speed, and notifies the reproduction signal processing circuit 28 that the recording request command has been received. Further, the CPU 40 instructs the buffer manager 37 to store the data received from the host 80 (hereinafter also referred to as “user data” for convenience) in the buffer RAM 34.
[0056]
When the rotation of the optical disk 15 reaches a predetermined linear velocity, the reproduction signal processing circuit 28 detects a track error signal and a focus error signal based on the output signal of the light receiver 59 and outputs the signals to the servo controller 33. Thereby, the track shift and the focus shift are corrected as described above. The correction of the focus shift and the track shift is performed at any time until the recording process ends. Further, the reproduction signal processing circuit 28 acquires ATIP information based on the output signal of the light receiver 59 and notifies the CPU 40 of the information. Note that the reproduction signal processing circuit 28 acquires ATIP information at predetermined timings until the recording process is completed, and notifies the CPU 40 of the ATIP information.
[0057]
The CPU 40 outputs a signal for controlling the seek motor to the motor driver 27 based on the ATIP information so that the optical pickup device 23 is located at the writing start point. Further, upon receiving a notification from the buffer manager 37 that the amount of user data stored in the buffer RAM 34 has exceeded a predetermined amount, the CPU 40 instructs the encoder 25 to generate a write signal.
[0058]
When the optical pickup device 23 reaches the writing start point, the CPU 40 notifies the encoder 25. Thus, the user data is written to the optical disk 15 via the encoder 25, the laser control circuit 24, and the optical pickup device 23. When all the user data received from the host 80 has been written, the recording process ends.
[0059]
Next, a brief description will be given of a processing operation when reproducing file data recorded on the optical disc 15 in response to a user request in the information recording system 10.
[0060]
When the user specifies a file and issues a playback request via the input device 85, the MPU 82a issues a command for requesting playback (hereinafter abbreviated as "playback request command"). This playback request command is transmitted to the optical disk device 20 via the interface 87.
[0061]
When the optical disk device 20 receives the reproduction request command from the host 80 via the interface 38, the operation shifts to the reproduction operation. The outline of the reproducing operation in the optical disk device 20 will be described below.
[0062]
The CPU 40 outputs a control signal for controlling the rotation of the spindle motor 22 to the motor driver 27 based on the reproduction speed, and notifies the reproduction signal processing circuit 28 that the reproduction request command has been received.
[0063]
When the rotation of the optical disk 15 reaches a predetermined linear velocity, the track shift and the focus shift are corrected in the same manner as described above. The correction of the focus shift and the track shift is performed at any time until the reproduction process ends.
[0064]
The CPU 40 outputs to the motor driver 27 a signal for controlling the seek motor so that the optical pickup device 23 is located at the reading start point, based on the ATIP information output from the reproduction signal processing circuit 28 at each predetermined timing.
[0065]
Then, when the optical pickup device 23 reaches the reading start point, the CPU 40 notifies the reproduction signal processing circuit 28. Thus, the reproduction signal processing circuit 28 detects the RF signal from the output signal of the light receiver 59, performs decoding processing, error correction processing, and the like, and then accumulates the reproduction data in the buffer RAM 34. The buffer manager 37 transfers the reproduction data stored in the buffer RAM 34 to the host 80 via the interface 38 when the data is prepared as sector data.
[0066]
That is, the optical disc device 20 records the designated information in the designated area of the optical disc 15 in response to the recording request command from the host 80, and records the designated information in the designated area of the optical disc 15 in response to the reproduction request command from the host 80. The recorded information is reproduced and the host 80 is notified.
[0067]
Next, a processing operation when creating a backup disk of a hybrid disk in response to a user request in the information recording system 10 will be described with reference to FIGS. 4 and 5 correspond to a series of processing algorithms executed by the MPU 82a. When the user instructs to create a backup disk via the input device 85, a program corresponding to the flowcharts of FIGS. 4 and 5 is loaded from the HDD 84 into the main memory 82b, and the start address is set in the program counter of the MPU 82a. , The process starts.
[0068]
In the first step 401, a message is displayed on the display device 86 for prompting the user to insert the optical disk to be backed up (hereinafter also referred to as “copy source disk” for convenience) into the optical disk device 20.
[0069]
In the next step 403, it is determined whether or not the copy source disk has been inserted into the optical disk device 20. When the notification that the copy source disk is inserted is received from the optical disk device 20, the determination here is affirmative, and the process proceeds to step 405.
[0070]
In this step 405, the disk information recorded on the copy source disk via the optical disk device 20 is obtained.
[0071]
In the next step 407, it is determined whether or not the source disk is a hybrid disk by referring to the disk information of the source disk. Here, if the copy source disk is not a hybrid disk, the determination in step 407 is denied, a message indicating that the copy source disk is not a hybrid disk is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if the copy source disk is a hybrid disk, the determination at step 407 is affirmative, and the routine goes to step 409.
[0072]
In this step 409, the information (referred to as R1) recorded in the ROM portion of the copy source disc via the optical disc device 20, the information (referred to as RA) recorded in the RAM portion, and the lead-in start time (Referred to as K1).
[0073]
In the next step 411, a message for urging the user to insert the copy source disk from the optical disk device 20 and to insert an optical disk serving as a backup destination (hereinafter also referred to as “destination disk” for convenience) into the optical disk device 20 is displayed. It is displayed on the device 86.
[0074]
In the next step 413, it is determined whether or not the copy destination disk is inserted into the optical disk device 20. If the notification that the copy destination disk has been inserted is received from the optical disk device 20, the determination here is affirmed, and the process proceeds to step 415.
[0075]
In this step 415, the disk information recorded on the copy destination disk is obtained via the optical disk device 20.
[0076]
In the next step 417, it is determined whether or not the duplication destination disk is a hybrid disk by referring to the disk information of the duplication destination disk. Here, if the copy destination disk is not a hybrid disk, the determination in step 417 is denied, a message indicating that the copy destination disk is not a hybrid disk is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if the copy destination disk is a hybrid disk, the determination in step 417 is affirmative, and the process proceeds to step 421.
[0077]
In this step 421, a lead-in start time (K2) is obtained as substrate information of the copy destination disk via the optical disk device 20.
[0078]
In the next step 423, it is determined whether or not the lead-in start time K1 of the copy source disk is equal to the lead-in start time K2 of the copy destination disk. Here, if the lead-in start times are different from each other, the determination in step 423 is denied, a message indicating that the duplication destination disk is inappropriate is displayed on the display device 86, and the process ends. That is, it is determined that the copy destination disk is not suitable for the backup disk, and no backup disk is created. On the other hand, if the respective lead-in start times are equal to each other, the determination in step 423 is affirmed, and the process proceeds to step 425. That is, it is determined that the copy destination disk is suitable for the backup disk.
[0079]
In step 425, information (R2) recorded in the ROM portion of the copy destination disk is read out via the optical disk device 20.
[0080]
In the next step 427, it is determined whether or not R1 and R2 are equal to each other. Here, if R1 and R2 are equal to each other, the determination in step 427 is affirmative, and the flow shifts to step 429.
[0081]
In this step 429, the RA is recorded in the RAM via the optical disk device 20. That is, the information recorded in the RAM section of the copy source disk is copied to the RAM section of the copy destination disk. Then, a message indicating that the creation of the backup disk has been completed normally is displayed on the display device 86, and the process is terminated.
[0082]
On the other hand, if R1 and R2 are not equal to each other in step 427, the determination in step 427 is denied, and the routine goes to step 433.
[0083]
In this step 433, it is determined whether or not R2 is predetermined dummy data. Here, if R2 is not the predetermined dummy data, the determination in step 433 is denied, a message indicating that backup is not possible is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if R2 is the predetermined dummy data, the determination at step 433 is affirmative, and the routine goes to step 435.
[0084]
In step 435, R1 and RA are recorded in the RAM via the optical disk device 20. That is, the information recorded in the ROM section and the RAM section of the copy source disk is copied to the RAM section of the copy destination disk. Then, a message indicating that the creation of the backup disk has been completed normally is displayed on the display device 86, and the process is terminated.
[0085]
As is apparent from the above description, in the information recording system according to this embodiment, the MPU 82a and the program executed by the MPU 82a determine the suitability judging unit, the first judging unit, the first copying unit, and the second copying unit. The determining means and the second copying means are realized. That is, the processing of step 423 in FIG. 5 allows the suitability judging means, the processing of step 427 makes the first judging means, the processing of step 429 makes the first copying means, and the processing of step 433 makes the second judging means. The second copy unit is realized by the processing of step 435.
However, it goes without saying that the present invention is not limited to this. That is, the above embodiment is merely an example, and at least a part of each component realized by the processing according to the program by the MPU 82a may be configured by hardware, or all components may be configured by hardware. It is good.
[0086]
Then, the first step of the backup disk creation method according to the present invention is performed by the processing of step 423 in FIG. 5, the second step is performed by the processing of step 427, and the third step is performed by the processing of step 429. The fourth step is performed by the processing of step 433, and the fifth step is performed by the processing of step 435.
[0087]
In the present embodiment, among the programs installed in the HDD 84, the program corresponding to the processing shown in the flowcharts of FIGS. 4 and 5 constitutes the backup disk creation program.
[0088]
As described above, according to the information recording system of this embodiment, in the host 80, when a backup disk creation request of a hybrid disk is issued from the user, the MPU 82a executes the backup disk creation processing. In this backup disk creation process, if the lead-in start time of the source disk and the lead-in start time of the destination disk match each other, it is determined that the destination disk is suitable for the backup disk. Therefore, even when protection using the substrate information unique to the hybrid disc is applied to the content information of the copy source disc, it is possible to normally reproduce the content on the backup disc.
[0089]
Further, according to the present embodiment, after it is determined that the duplication destination disk is suitable for the backup disk, it is determined whether or not the information in the ROM units match each other. Normally, the time required to determine whether or not the duplication destination disk is suitable for a backup disk (hereinafter also referred to as “appropriateness determination” for convenience) is determined by whether or not the information in the ROM units match each other (hereinafter, referred to as “relevance determination”). This is much shorter than the time required for “ROM determination” for convenience), so when the copy destination disk is not suitable for the backup disk, the backup can be performed in a much shorter time than when the determination is made after the ROM determination. A message indicating that it is not possible can be displayed on the display device 86.
[0090]
In the above embodiment, when the information amount or the recording capacity of the ROM section is small, the appropriateness determination may be performed after the ROM determination.
[0091]
Further, in the above embodiment, when the information of each ROM section does not match each other in the ROM determination, it is determined whether R2 is predetermined dummy data (hereinafter also referred to as “dummy data determination” for convenience). As described above, when it is clear that R2 is not the predetermined dummy data, the dummy data determination need not be performed. That is, if R1 and R2 are not equal to each other in step 427, a message indicating that backup is not possible may be displayed on the display device 86, and the process may end. Further, when there is not enough RAM capacity in the copy destination disk to copy R1 and RA, the dummy data determination need not be performed in the same manner.
[0092]
Further, in the above embodiment, the case where the information recording system includes one optical disk device has been described, but the present invention is not limited to this, and a plurality of optical disk devices may be provided. As an example, FIG. 6 shows an information recording system 10 'provided with two optical disk devices 20a and 20b. In this case, by using the optical disk device for the copy source disk and the optical disk device for the copy destination disk separately, there is no need to change disks during the backup disk creation process. The backup disk creation process at this time will be briefly described with reference to the flowcharts in FIGS. Here, the optical disk device for the source disk is the optical disk device 20a, and the optical disk device for the destination disk is the optical disk device 20b. The optical disk device 20a and the optical disk device 20b have the same function as the optical disk device 20.
[0093]
In the first step 501, a message for prompting the user to insert the copy source disk into the optical disk device 20a is displayed on the display device 86.
[0094]
In the next step 503, it is determined whether or not the copy source disk has been inserted into the optical disk device 20a. When the notification that the copy source disk has been inserted is received from the optical disk device 20a, the determination here is affirmed, and the process proceeds to step 505.
[0095]
In this step 505, the disk information recorded on the copy source disk is obtained via the optical disk device 20a.
[0096]
In the next step 507, it is determined whether or not the source disk is a hybrid disk by referring to the disk information of the source disk. Here, if the source disk is not a hybrid disk, the determination in step 507 is denied, a message indicating that the source disk is not a hybrid disk is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if the copy source disk is a hybrid disk, the determination in step 507 is affirmative, and the process proceeds to step 509.
[0097]
In the next step 509, a message for prompting the user to insert the copy destination disk into the optical disk device 20b is displayed on the display device 86.
[0098]
In the next step 511, it is determined whether or not the copy destination disk is inserted into the optical disk device 20b. When the notification that the copy destination disk is inserted is received from the optical disk device 20b, the determination here is affirmed, and the process proceeds to step 513.
[0099]
In step 513, the disk information recorded on the copy destination disk is obtained via the optical disk device 20b.
[0100]
In the next step 515, it is determined whether or not the copy destination disk is a hybrid disk by referring to the disk information of the copy destination disk. Here, if the duplication destination disk is not a hybrid disk, the determination in step 515 is denied, a message indicating that the duplication destination disk is not a hybrid disk is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if the copy destination disk is a hybrid disk, the determination at step 515 is affirmative, and the routine goes to step 521.
[0101]
In this step 521, the lead-in start time K1 of the copy source disk is obtained via the optical disk device 20a, and the lead-in start time K2 of the copy destination disk is obtained via the optical disk device 20b.
[0102]
In the next step 523, it is determined whether or not K1 and K2 match. If K1 and K2 are different from each other, the determination in step 523 is denied, a message indicating that the duplication destination disk is inappropriate is displayed on the display device 86, and the process ends. That is, it is determined that the copy destination disk is not suitable for the backup disk, and no backup disk is created. On the other hand, if the lead-in start times are equal to each other, the determination in step 523 is affirmative, and the routine goes to step 525. That is, it is determined that the copy destination disk is suitable for the backup disk.
[0103]
In this step 525, the information R1 recorded in the ROM portion of the copy source disk is obtained via the optical disk device 20a, and the information R2 recorded in the ROM portion of the copy destination disk is read out via the optical disk device 20b. .
[0104]
In the next step 527, it is determined whether or not R1 and R2 are equal to each other. Here, if R1 and R2 are equal to each other, the determination in step 527 is affirmative, and the routine goes to step 529.
[0105]
In step 529, the information RA recorded in the RAM section of the copy source disk is read via the optical disk device 20a.
[0106]
In the next step 531, the RA is recorded in the RAM section of the copy destination disk via the optical disk device 20b. Then, a message indicating that the creation of the backup disk has been completed normally is displayed on the display device 86, and the process is terminated.
[0107]
On the other hand, if R1 and R2 are not equal to each other in step 527, the determination in step 527 is denied, and the routine goes to step 533.
[0108]
In this step 533, it is determined whether or not R2 is predetermined dummy data. Here, if R2 is not the predetermined dummy data, the determination in step 533 is denied, a message indicating that backup is not possible is displayed on the display device 86, and the process ends. That is, no backup disk is created. On the other hand, if R2 is the predetermined dummy data, the determination in step 533 is affirmative, and the routine goes to step 535.
[0109]
In this step 535, the information RA recorded in the RAM section of the copy source disk is read via the optical disk device 20a.
[0110]
In the next step 537, R1 and RA are recorded in the RAM section of the copy destination disk via the optical disk device 20b. Then, a message indicating that the creation of the backup disk has been completed normally is displayed on the display device 86, and the process is terminated.
[0111]
Also in this case, if it is clear that R2 is not the predetermined dummy data, the dummy data determination need not be performed. That is, in step 527, if R1 and R2 are not equal to each other, a message indicating that backup is not possible may be displayed on the display device 86, and the process may end. Further, when there is not enough RAM capacity in the copy destination disk to copy R1 and RA, the dummy data determination need not be performed in the same manner.
[0112]
Further, in the above embodiment, R1, RA and K1 are collectively read in step 409 in order to reduce the number of disk exchanges to one. May read R1, RA and K1 when needed.
[0113]
Further, in the above embodiment, in step 427 of the backup disk creation process, it is determined whether the information R1 recorded in the ROM portion of the copy source disk and the information R2 recorded in the ROM portion of the copy destination disk match each other. However, if the determination result is not affected, it may be determined whether or not the specific information included in R1 and R2 match.
[0114]
In the above embodiment, the case where the lead-in start time is used as the substrate information has been described. However, the present invention is not limited to this, and one of the read-out start time and the parameter of the recording strategy may be used. Further, a plurality of pieces of information including at least one of a lead-in start time, a lead-out start time, and a parameter of a recording strategy may be used as the board information.
[0115]
Further, in the above embodiment, in step 417 of the backup disk creation process, it is determined whether or not the destination disk is a hybrid disk. However, the destination disk has a predetermined compatibility with the source disk. It may be determined whether or not there is.
[0116]
Further, in the above embodiment, the case where the optical disc apparatus is compatible with the information recording medium conforming to the CD standard has been described, but the present invention is not limited to this. For example, an optical disk device that supports both an information recording medium conforming to the CD standard and an information recording medium conforming to the DVD standard may be used.
[0117]
In the above embodiment, the backup disk creation program is recorded on the HDD 84, but may be recorded on another recording medium (CD-ROM, magneto-optical disk, flash memory, flexible disk, or the like). In this case, a drive device corresponding to each recording medium is added, and a backup disk creation program is installed from each drive device. In short, it suffices if the backup disk creation program is loaded into the main memory 82b.
[0118]
【The invention's effect】
As described above, according to the backup disk creation method and the information recording system of the present invention, there is an effect that a normal backup disk of a hybrid disk can be created.
[0119]
Further, according to the program and the recording medium of the present invention, there is an effect that a normal backup disc of a hybrid disc can be created, which is executed by the information recording apparatus and the information processing apparatus constituting the information recording system.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of an information recording system according to an embodiment of the present invention.
FIG. 2 is a block diagram for explaining a detailed configuration of an optical pickup device in FIG.
FIG. 3 is a block diagram for explaining a detailed configuration of a reproduction signal processing circuit in FIG. 1;
FIG. 4 is a flowchart (part 1) for explaining a backup disk creation process in the information recording system of FIG. 1;
FIG. 5 is a flowchart (part 2) for explaining a backup disk creation process in the information recording system of FIG. 1;
FIG. 6 is a block diagram illustrating a schematic configuration of an information recording system including two optical disk devices.
FIG. 7 is a flowchart (part 1) for describing a backup disk creation process in the information recording system of FIG. 6;
FIG. 8 is a flowchart (part 2) for explaining a backup disk creation process in the information recording system of FIG. 6;
FIG. 9 is a schematic diagram for explaining a configuration of a hybrid disc.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Information recording system, 15 ... Optical disk (information recording medium), 20 ... Optical disk apparatus (information recording apparatus), 80 ... Host (information processing apparatus), 82a ... MPU (Appropriateness judgment means, 1st judgment means, 1st 84: Hard disk (recording medium), 85: Input device (input means).

Claims (13)

A method for creating a backup disc of a hybrid disc having a read-only area and a writable or rewritable area,
A first step of determining whether or not the information recording medium is suitable for a backup disk based on a criterion preset based on the substrate information of the hybrid disk and substrate information of a backup information recording medium How to make a backup disk including The criterion is that, in the board information of the hybrid disc and the board information of the information recording medium, when the predetermined information included in the board information matches each other, the information recording medium is suitable for a backup disc. 2. The backup disk creation method according to claim 1, wherein the determination is a criterion. The method according to claim 2, wherein the predetermined information includes at least one of a lead-in start time, a lead-out start time, and a parameter of a recording strategy. The information recording medium has a read-only area and a writable or rewritable area,
As a result of the determination, when it is determined that the information recording medium is suitable for a backup disk, the information is recorded in each of the read-only areas in the read-only area of the hybrid disc and the read-only area of the information recording medium. A second step of determining whether or not the specific information matches each other;
As a result of the determination in the second step, when the specific information recorded in each of the read-only areas matches each other, the information recorded in the writable or rewritable area of the hybrid disc is copied to the information recording medium. The method according to any one of claims 1 to 3, further comprising: a third step of copying to a writable or rewritable area. As a result of the determination in the second step, when the specific information recorded in each of the read-only areas does not match each other, the information recorded in the read-only area of the information recording medium is predetermined dummy data. A fourth step of determining whether or not;
As a result of the determination in the fourth step, if the information recorded in the read-only area of the information recording medium is predetermined dummy data, the information is recorded in the read-only area and the writable or rewritable area of the hybrid disc. 5. The method according to claim 4, further comprising: a fifth step of copying the stored information to a writable or rewritable area of the information recording medium. A program used in an information processing device configuring an information recording system together with the information recording device,
A first procedure of acquiring substrate information of a backup information recording medium in response to a backup disk creation request of a hybrid disk having a read-only area and a writable or rewritable area;
A second step of determining whether the information recording medium is suitable for a backup disk based on a criterion set in advance based on the substrate information of the hybrid disk and the substrate information of the information recording medium; For causing the information processing apparatus to execute the above. The criterion is that, in the board information of the hybrid disc and the board information of the information recording medium, when the predetermined information included in the board information matches each other, the information recording medium is suitable for a backup disc. The program according to claim 6, which is a criterion for determination. The information recording medium has a read-only area and a writable or rewritable area,
As a result of the determination, when it is determined that the information recording medium is suitable for a backup disk, the information is recorded in each of the read-only areas in the read-only area of the hybrid disc and the read-only area of the information recording medium. A third step of determining whether or not the specific information matches each other;
If the result of the determination in the third step is that the specific information recorded in each of the read-only areas matches each other, the information recorded in the writable or rewritable area of the hybrid disc is replaced with the information recorded on the information recording medium. 8. The program according to claim 6, further comprising: causing the information processing apparatus to further execute a fourth procedure of copying to a writable or rewritable area. As a result of the determination in the third procedure, when the specific information recorded in each of the read-only areas does not match each other, the information recorded in the read-only area of the information recording medium is predetermined dummy data. A fifth step of determining whether or not;
As a result of the determination in the fifth step, when the information recorded in the read-only area of the information recording medium is predetermined dummy data, the information is recorded in the read-only area and the writable or rewritable area of the hybrid disc. 9. The program according to claim 8, further comprising: causing the information processing apparatus to further execute a sixth procedure of copying the stored information to a writable or rewritable area of the information recording medium. A computer-readable recording medium on which the program according to any one of claims 6 to 9 is recorded. An information recording system for recording information,
An information recording device for recording information;
An input unit for inputting various requests to the information recording apparatus; and a hybrid disk backup request having a read-only area and a writable or rewritable area input through the input means. A propriety judging means for judging whether or not the information recording medium is suitable for a backup disc, based on a judgment standard preset based on the disc substrate information and the board information of the information recording medium for backup, An information processing apparatus comprising: processing means for determining whether to permit the backup disk creation request based on the determination result of the suitability determination means. The information recording medium has a read-only area and a writable or rewritable area, and the processing means
When it is determined that the information recording medium is suitable for a backup disk as a result of the determination by the suitability determination unit, the read-only area of the hybrid disk and the read-only area of the information recording medium are read. First determining means for determining whether or not the specific information recorded in the area matches each other;
A first copying unit that permits the backup disk creation request when the specific information recorded in each of the read-only areas matches each other as a result of the determination by the first determining unit. The information recording system according to claim 11, wherein The processing unit determines that the specific information recorded in each of the read-only areas does not match each other as a result of the determination by the first determining unit.
Second determining means for determining whether information recorded in the read-only area of the information recording medium is predetermined dummy data;
A second copying unit that permits the backup disk creation request when the information recorded in the read-only area of the information recording medium is predetermined dummy data as a result of the determination by the second determining unit; The information recording system according to claim 12, further comprising:

Images