JP2001332031A - Method of recording and writing copyright management information of disk, disk, method of recording and reproducing for disk, and reproducing device for disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a copy protection key recorded on a disk to be easily processed. SOLUTION: A copy prohibition cord as copyright information, an SID cord showing a disk manufacturer and an ISRC cord showing a program source recorded on the disk are recorded on a read-in part of DVD-audio after scramble is performed. Besides, the copyright information may also be written in a PCA of the disk by laser cutting. When the SID cord of the disk, etc., is not regular, a reproducing device decides it to be 'pirated-edition'and does not perform reproduction. The method is applicable also to the disk having a TOC other than the DVD.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a DVD (digital video disk or digital versatile disk),
Discs such as CDs and CD-ROMs (optical discs,
The present invention relates to a method of recording and writing a copyright management information of a disk (including a magneto-optical disk), a disk, a method of recording and reproducing a disk, and a reproducing apparatus.

[0002]

2. Description of the Related Art In general, high-quality video, audio, and data can be recorded on a DVD.
It is necessary to protect the copyright of data from illegal copies (so-called pirated boards). CD-Rs (Compact Disc Recordable) include enhanced CDs and CD-ROs.
Since high quality images, data and audio from M can be duplicated and recorded, it is necessary to protect the copyright of the images, data and audio from illegal copies. As a copyright protection method, the copyright management information is scrambled in advance and recorded on the disc, and a part of the copyright management information is used as a copy protection key, so that when the player successfully reads the copy protection key, it plays back If the disc cannot be read normally, it is considered that the disc is illegally copied and the reproduction is not performed, or the reproduction is performed but the digital output is not performed.

[0003]

When a copy protection key is recorded on a disk, it is desirable that the key be difficult to read. However, if the copy protection key is complicated, there is a problem that the process of confirming the validity at the time of reading is complicated.

An object of the present invention is to provide a recording / reproducing method and a reproducing apparatus for a disk capable of easily processing a copy protect key in view of the above-mentioned conventional problems.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention comprises the following means 1) to 18). 1) A recording method for recording copyright management information on a disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference. Scrambling, as copyright management information of the disc, an SID code indicating a creator of the disc; and the scrambled SID.
Recording the code in a plurality of sectors other than the sector where the physical format information is recorded in the control data section composed of 16 sectors of the lead-in section,
Method for recording copyright management information on a disc. 2) A recording method for recording copyright management information on a disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, wherein: As the copyright management information of the disc, a step of scrambling an SID code indicating a creator of the disc and an ISRC code indicating a program source recorded on the disc, and transmitting the scrambled SID code and ISRC code to the lead-in section. Recording in a plurality of sectors other than the sector where the physical format information in the control data section composed of 16 sectors is recorded. 3) A recording method for recording copyright management information on a disk provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, and Scrambling the SID code indicating the creator as the copyright management information of the above, and repeatedly recording the scrambled SID code in the variable length copyright management information area of the lead-in section a plurality of times. , A method for recording copyright management information on a disk. 4) A recording method for recording copyright management information on a disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. As the copyright management information of the disc, a step of scrambling an SID code indicating a creator of the disc and an ISRC code indicating a program source recorded on the disc, and transmitting the scrambled SID code and ISRC code to the lead-in section. Recording the copyright management information in a variable-length copyright management information area a plurality of times repeatedly. 5) A recording method for recording copyright management information on a disk provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, and Scrambling an encoded IFPI code as an SID code indicating the creator of the copyright management information of the copyrighted information, and laser-cutting the scrambled IFPI code into a bar code to form the post-cutting area. And writing the copyright management information of the disk. 6) A recording method for recording copyright management information on a disk provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, and Scrambling an encoded IFPI code as an SID code indicating its creator and an ISRC code indicating a program source recorded on a disc, as said copyright management information of said copyright management information; and said scrambled IFPI code and ISRC code Is written in the post-cutting area after being laser-cut into a bar code, and is written in the post-cutting area. 7) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner periphery toward the outer periphery, and the production of the disc is performed as copyright management information of the disc. SI
The D code is scrambled to form a physical format in the control data section consisting of the 16 sectors of the lead-in section into a plurality of sectors other than the sector where the physical format information in the control data section consisting of the 16 sectors of the lead-in section is recorded. Recorded disc. 8) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, each of which is produced as copyright management information of the disc. SI
The D code and the ISRC code indicating the program source recorded on the disk are scrambled into a plurality of sectors other than the sector where the physical format information in the control data section consisting of 16 sectors of the lead-in section is recorded. Recorded disc. 9) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, and a creator of the disc as copyright management information of the disc. A disc in which the indicated SID code is scrambled and repeatedly recorded a plurality of times in the variable length copyright management information area of the lead-in section. 10) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner periphery toward the outer periphery, and the creator of the disc as copyright management information of the disc. SI indicating
A disc in which a D code and an ISRC code indicating a program source recorded on the disc are scrambled and repeatedly recorded in the variable-length copyright management information area of the lead-in section a plurality of times. 11) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner periphery toward the outer periphery, and the creator of the disc as copyright management information of the disc. SID indicating
A disk in which an encoded IFPI code as a code is scrambled, laser-cut into a bar code, and recorded in the post-cutting area. 12) A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, and a creator of the disk as copyright management information of the disk. The scrambled and encoded I
The FPI code and the ISRC code indicating the program source recorded on the disk are scrambled and input, and the input IFPI code and ISRC code are laser-cut into a bar code and written into the post-cutting area. Disc. 13) As the copyright management information of the disc in which the post-cutting area, the lead-in part, the data part, and the lead-out part are provided from the inner circumference toward the outer circumference, an SID code indicating the creator is provided. Scrambling, recording the scrambled SID code in a plurality of sectors other than the sector where the physical format information is recorded in the control data section including 16 sectors of the lead-in section, and recording the scrambled SID code in the sector. Reading the existing SID code, descrambling the read SID code, determining whether the descrambled SID code is valid, and permitting reproduction from the disk if the descrambled SID code is valid. And prohibiting the reproduction if not authorized. Method of recording and reproducing disk. 14) As the copyright management information of the disc in which the post cutting area, the lead-in section, the data section, and the lead-out section are provided from the inner circumference toward the outer circumference, an SID code indicating the creator is provided. Scrambling, and repeatedly recording the scrambled SID code in a variable-length copyright management information area of the lead-in section a plurality of times, reading the SID code recorded in the copyright management information area Descrambling the read SID code; and descrambling the SID code.
Discriminating whether the code is legitimate or not, permitting reproduction from the disk if the code is legal, and prohibiting reproduction if the code is not legal. 15) As copyright management information of a disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, as an SID code indicating a creator thereof. IF
Scrambling the PI code, laser-cutting the scrambled IFPI code into a barcode, and writing the post-cutting area to the post-cutting area, and writing the IFPI code written in the post-cutting area to the post-cutting area. Reading; descrambling the read IFPI code; and descrambling the descrambled IPI code.
Discriminating whether or not the FPI code is legitimate, permitting reproduction from the disc if the FPI code is legitimate, and prohibiting reproduction if the FPI code is not legitimate. 16) As the copyright management information of the disc in which the post cutting area, the lead-in section, the data section, and the lead-out section are provided from the inner circumference toward the outer circumference, an SID code indicating the creator is provided. The scrambled and scrambled SID code is a physical format in the control data section consisting of 16 sectors of the lead-in section. A plurality of sectors other than the sector where the physical format information in the control data section consisting of 16 sectors of the lead-in section are recorded. A SID code reading means for reading the SID code recorded in the sector, and descrambling the SID code read by the SID code reading means. Descrambling means and before Playback control means for determining whether or not the SID code descrambled by the descrambling means is legitimate, permitting reproduction from the disc when the SID code is legitimate, and prohibiting reproduction when the SID code is not legitimate; Playback device. 17) As the copyright management information of the disc in which the post-cutting area, the lead-in part, the data part, and the lead-out part are respectively provided from the inner circumference toward the outer circumference, an SID code indicating the creator is provided. A disk reproducing apparatus for reproducing a disk in which a scrambled and scrambled SID code is repeatedly recorded a plurality of times in a variable-length copyright management information area of the lead-in section, wherein the copyright management information area includes SID code reading means for reading the recorded SID code, descrambling means for descrambling the SID code read by the SID code reading means, and whether the SID code descrambled by the descrambling means is normal From the disc if it is legitimate The reproduction is permitted, and reproduction control means for inhibiting playback when not a legitimate disk reproducing apparatus having. 18) A post-cutting area, a lead-in section, a data section, and a lead-out section are provided from the inner circumference toward the outer circumference, respectively, and an SID code indicating a creator is provided as copyright management information of the disc. The scrambled and encoded IFPI code is laser cut into a bar code and
What is claimed is: 1. A disc reproducing apparatus for reproducing a disc recorded in a cutting area, comprising: an SI for reading an IFPI code written in the post cutting area;
D code reading means, descrambling means for descrambling the IFPI code read by the SID code reading means, and judging whether the IFPI code descrambled by the descrambling means is normal, A reproduction control means for permitting reproduction from the disk and prohibiting reproduction when the reproduction is not authorized.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing a format for realizing an embodiment of a disk recording / reproducing method and a disk reproducing apparatus to which the present invention is applied, and FIG.
FIG. 5 is an explanatory diagram showing the details of the copyright management information of FIG.

FIG. 1 shows a recording format of a lead-in portion of a DVD-audio (DVD standardized for audio only) as an example of a disk. The area of the disc is roughly PCA from the inner circumference to the outer circumference.
(Post cutting area), lead-in,
It is composed of a data section and a lead-out section, and one sector is composed of 2048 bytes. The control area of the lead-in section is composed of 16 sectors “1” to “16”, physical format information is recorded in sector “1”, disc manufacturing information is recorded in sector “2”, and sector “3” is recorded. In "4", copyright information as shown in detail in FIG. 2 is recorded.

In the first byte of the sectors "3" and "4", a 4-bit copy prohibition code is recorded. Copy prohibition code "1000" is "copy prohibition", "1100"
Represents “copy permitted” and “1010” represents “copy permitted once” (others are reserved). The 2nd to 18th bytes indicate ISRC (International Standard Recording Code) indicating the music (program source)
Code) An area of a code and an SID (source ID) code indicating a disc maker. In the second byte, a synchronizing signal for scrambling the 8-bit ISRC code and the SID code is recorded.
A 0-bit ISRC code is scrambled and recorded, and an SID code for eight characters is scrambled and recorded in the 11th to 18th bytes and thereafter.

Similarly, the ISRC code and SID code for one title are recorded in 16 bytes, and a total of 9
Nine titles are recorded. In addition, instead of scrambling both the ISRC code and the SID code,
Only the code may be scrambled. Note that “IF” shown as an example of the SID code in FIG.
"PI ・ L231 ~ 7" is an international record and video producer's (IFPI) International Federation of Ph.D.
onogram Industries, now known as International Federation
of Phonogram and Video Industries) and "L2
Reference numerals 31 to 7 indicate IFPI mastering codes of Victor Company of Japan, Limited. The ISRC code is 12
The first to fifth characters are 6 bits each,
The twelfth character is composed of 4 bits (6 bits are blank).

Next, a second embodiment will be described with reference to FIG. In the second embodiment, a variable length copyright management information (CMI) area of 16 bytes (128 bits) to 188 bytes (1504 bits) is provided not in the sector but in the lead-in portion of the disk. In the CMI area, for example, 64-bit disc manufacturing date data, 52-bit factory code, 8-bit scrambling synchronization signal, 60-bit ISRC code, 8-byte SID code, and copy permission 4-bit CGMCAPS (Copy Generation Manageme
Control Audio Protection System) code is recorded. This data is repeatedly recorded several times, and
The SRC code and the SID code are scrambled and recorded. Further, in the CMI area, the control data area of the lead-in section is manufactured and recorded in advance as a RAM area.

Next, a third embodiment will be described with reference to FIG. In the third embodiment, as in the second embodiment, 16 bytes (12 bytes) are stored in the lead-in portion of the disk.
A variable length CMI area of 8 bits) to 188 bytes (1504 bits) is provided, and a dummy disk manufacturing date is arranged after the SID code in order to scramble the 8 byte SID code in this CMI area. , Or only the SID code is scrambled and recorded. The CMI area is also manufactured and recorded as a RAM area in advance. Here, the method of scrambling the control data may be the same as the method of scrambling the program source recorded in the data portion of the disc, or may be another method.

FIG. 5 shows an encoder for producing DVD-Audio as an example of a disk, and has an input terminal IN.
An analog audio signal (program source) and copyright information are applied to IN1 and IN2, respectively. An analog audio signal is converted into a digital signal by an A / D converter 1, and the data is subjected to signal processing such as emphasis, equalizing, noise gate, and effect processing by a signal processing circuit 2 and a memory 3, followed by DVD encoding. Applied to circuit 4.

The copyright information is encoded and scrambled by a copyright encoding circuit 5 and applied to a DVD encoding circuit 4. In the DVD encoding circuit 4, the copyright information is packed in the lead-in section or the CMI area, and the audio data is packed in the program source data section. Next, the output signal of the DVD encoding circuit 4 is EFM-modulated by the modulation circuit 6 and output via the output terminal OUT.
Then, a master is manufactured based on the output signal of the output terminal OUT, and a DVD-Audio is manufactured based on the master.

The disk 11 thus manufactured is shown in FIG.
Is reproduced by a reproducing apparatus as shown in FIG. FIG. 7 shows the reproduction process. When the disk 11 is set on the tray 21 having the disk drive unit 12 and the lid 22 is closed (or closed by the user) and a reproduction instruction is input (step S1), the disk 11 is driven by the disk drive unit 12 to read. The control data of the IN part is read first (step S2), and then the program source data is read. The read data is subjected to EFM demodulation by the demodulation circuit 13 and then applied to the DVD decoding circuit 14. In the DVD decoding circuit 14, first, the data packed by the DVD encoding circuit 4 of the encoder shown in FIG. 5 is unpacked by the format decoding unit 14A, and then encoded by the copyright encoding circuit 5 of the encoder shown in FIG. , The control data of the scrambled lead-in section is transferred to the descrambling section 14B.
Is descrambled by

The SID code in the control data is sent to the reference data supply unit 1 by the key collation circuit 18.
9 against the SID code. The reference data supply 19 generates all IFPI mastering codes of the International Federation of Record and Video Producers,
It is determined whether or not the disk 11 has a valid SID code recorded, that is, whether or not the disk 11 is a "pirate board" (step S4).

In step S4, if the SID code is valid, in the case of a disc having a copy prohibition code recorded in the control data as shown in FIG. 2, it is determined whether or not "copy prohibition" is performed ( Step S
5) If the copy is not prohibited, the program source is set to D.
Reproduction is carried out by outputting via the / A converter 15 and the output terminal 16 (step S6). In the case of a disc on which a CGMCAPS code indicating the number of times of copying is recorded as shown in FIG. 3, it is determined whether or not the number of times of copying is the maximum value. Is incremented.

On the other hand, in step S4, the SID
If the code is not proper, the drive of the disk drive unit 12 is stopped, and then the disk 11 is rejected by operating the reject mechanism 20 such as a solenoid to open the lid 22 (step S7). Next, if "copy prohibited" (or the number of times of copying is the maximum value) is determined in step S5, "reproduction impossible" is displayed (step S8).

FIG. 8 shows another reproducing apparatus, and FIG. 9 shows the processing. When a reproduction instruction is input (step S1
1) The disk 11 is driven by the disk drive unit 12, and the control data of the lead-in unit is read first (step S12), and then the program source data is read. This read data is subjected to EF by the demodulation circuit 13.
After M demodulation, it is applied to the DVD decoding circuit 14 and the format decoding unit 17A. The control data is unpacked by the format decoding unit 17A and then descrambled by the descrambling unit 17B.

The SID code in the control data is sent to the reference data supply unit 1 by the key collation circuit 18.
9 (steps S13 and S13).
14) If the SID code is legitimate, it is determined whether the copy prohibition code (or CGMCAPS code) in the control data is “copy prohibition” (step S1).
5) If the program source is not “copy prohibited”, the program source is D
Reproduction is performed via the VD decoding circuit 14, the D / A converter 15, and the output terminal 16 (step S16).

On the other hand, in step S14, SI
If the D code is not normal, the drive of the disc drive unit 12 is stopped after playing for one second in order to inform the user that the playback device or the disc 11 is not "bad", and then, in step S15, In the case of "copy prohibition", a message "reproduction impossible" is displayed (step S18).

Next, another recording method of the SID code will be described with reference to FIGS. In the above embodiment, the SI
Although the D code and the like are recorded in the RAM area of the disk, in this embodiment, as shown in FIG. 10, the data is written by laser cutting into a PCA (post cutting area) provided on the inner peripheral side from the lead-in portion. .
The signal in this case is RZ (Return t) as shown in FIG.
o), which is modulated by a PE (Phase Encoding) signal having a different phase according to the bits “1” and “0”, and recorded as pit data (barcode).

This writing can be realized by a laser cutting process of about several seconds using a laser cutting section 7 as shown in FIG. 12 after stamping (forming process) of the disk 11, so that the productivity of the disk 11 is reduced. It does not get worse. The writing method will be described with reference to FIGS. 12 and 13. First, when the above-described copyright information is input to the copyright encoding circuit 5 (step S10).
21) The copyright information is scrambled by the copyright encoding circuit 5 (step S22), formatted into a predetermined format (step S23), and then converted into a PE-RZ signal (step S24). Next, the laser beam is PE-
The data is modulated by the RZ signal and written to the PCA of the disk 11 (step S25).

When reproducing the disk 11 on which the copyright information including the SID code is written in the PCA, the reproduction apparatus shown in FIGS.
The A data is read, and reproduction permission, rejection, and the like are performed by the processing shown in FIGS. Here, instead of simply not responding in step S7 of FIG. 7, the rejection is made to indicate a positive will to appeal that the disc is an illegal copy.

Although each of the above embodiments has been described as applied to a DVD, the present invention can be applied to a disc of another standard such as a CD-ROM. In that case, the above embodiment can be appropriately modified and applied by replacing the DVD encoding circuit with a CD-ROM encoding circuit and replacing the DVD decoding circuit with a CD-ROM decoding circuit. Further, the present invention can be applied to a CD or an enhanced CD. FIG. 14 shows an encoder of an enhanced CD to which the present invention is applied, and FIGS. 15 and 16 show two examples of an enhanced CD reproducing apparatus. FIG.
5 and 16 are shown in the flowcharts of FIGS. 17 and 18, respectively. FIG.
Sets the DVD encoding circuit 4 in FIG.
Enhanced CD encoding circuit 4 for performing D-ROM encoding
A. FIGS. 15 and 16 show the DVD decoding circuit 14 of FIGS. 7 and 8 replaced with an enhanced CD decoding circuit 14C, respectively. Due to this change, data supplied from the enhanced CD decoding circuit 14C to a computer (not shown) is obtained. The output and the audio signal output from the terminal 16 via the D / A converter 15 are output.

In the flowcharts of FIGS. 17 and 18, the process of reading the control data in steps S2 and S12 of FIGS. 7 and 9 has been changed to the process of reading the TOC (steps S2A and S12A).
Also, the determination of whether to prohibit copying in steps S5 and S15 in FIGS. 7 and 9 has been deleted. Step S2A in FIG.
Then, TOC (Table Of Contents) is read. In this case, it is assumed that copyright information as shown in FIG. 4 is recorded in addition to the normal TOC. Others are the same. In step S12A of FIG. 18, TOC is similarly read. Also in this case, it is assumed that copyright information as shown in FIG. 4 is recorded in addition to the normal TOC. Others are the same. However, since the copy prohibition code is not recorded, if the key is valid in steps S4 and S14, reproduction is started (steps S6 and S16). The data output is supplied to a computer (not shown) and used to reproduce an image or the like.

[0026]

As described above, according to the present invention, the SID indicating the creator is used as the copyright management information of the disk.
A code or an ISRC code indicating a program source recorded on a disc is scrambled and recorded to be used as a copy protection key. If the SID code is legitimate, reproduction from the disc is permitted. , The copy protection key can be easily processed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a format for realizing an embodiment of a disk recording / reproducing method and a disk reproducing apparatus to which the present invention is applied.

FIG. 2 is an explanatory diagram showing details of copyright management information of FIG. 1;

FIG. 3 is an explanatory diagram showing a format for realizing a second embodiment of a disk recording / reproducing method and a disk reproducing apparatus according to the present invention.

FIG. 4 is an explanatory diagram showing a format for realizing a third embodiment of a disk recording / reproducing method and a disk reproducing apparatus according to the present invention.

FIG. 5 is a block diagram showing a DVD-Audio encoder.

FIG. 6 is a block diagram illustrating an example of a DVD-audio playback device.

FIG. 7 is a flowchart for explaining a reproduction process of the DVD-audio reproduction device of FIG. 6;

FIG. 8 is a block diagram illustrating another example of a DVD-audio playback device.

FIG. 9 is a flowchart for explaining a reproduction process of the DVD-audio reproduction device of FIG. 8;

FIG. 10 is an explanatory diagram showing a format for realizing a fourth embodiment of a disk recording / reproducing method and a disk reproducing apparatus to which the present invention is applied.

FIG. 11 is an explanatory diagram showing a write signal of copyright management information according to a fourth embodiment.

FIG. 12 is a block diagram illustrating a copyright management information writing device according to a fourth embodiment.

FIG. 13 is a flowchart for explaining processing of the copyright management information writing device of FIG. 12;

FIG. 14 is a block diagram illustrating an example of a configuration of an enhanced CD encoder.

FIG. 15 is a block diagram illustrating an example of an enhanced CD playback device.

FIG. 16 is a block diagram showing another example of the enhanced CD reproducing device.

FIG. 17 is a flowchart illustrating an example of a reproduction process of the enhanced CD reproduction device in FIG. 15;

FIG. 18 is a flowchart illustrating an example of a reproduction process of the enhanced CD reproduction device in FIG. 16;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 A / D converter 2 Signal processing circuit 3 Memory 4 DVD encoding circuit 4A Enhanced CD encoding circuit (CD encoding and C
D-ROM encoding) 5 Copyright encoding circuit 6 Modulation circuit 7 Laser cutting unit 11 Optical disk (DVD) 11A Optical disk (Enhanced CD) 12 Disk drive unit (SID code reading means) 13 Demodulation circuit 14 DVD decoding circuit 14A, 14A ', 17A format decoding section 14B, 14B', 17B descramble section (descrambling means) 14C enhanced CD decoding circuit 15 D / A converter 16 output terminal 18 key matching circuit (constitutes reproduction control means together with reference data supply section 19) 19) Reference data supply unit 20 Reject mechanism 21 Tray 22 Lid

Claims (18)

[Claims] 1. A recording method for recording copyright management information on a disk provided with a post cutting area, a lead-in section, a data section, and a lead-out section from an inner periphery toward an outer periphery. Scrambling an SID code indicating the creator as the copyright management information of the disc; and recording the scrambled SID code in a physical format information in a control data section including 16 sectors of the lead-in section. Recording in a plurality of sectors other than the sector to be recorded. 2. A recording method for recording copyright management information on a disk provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. And scrambling, as the copyright management information of the disc, an SID code indicating a creator of the disc and an ISRC code indicating a program source recorded on the disc; and reading the scrambled SID code and ISRC code into the read Recording the data in a plurality of sectors other than the sector where the physical format information in the control data portion composed of the 16 sectors of the IN portion is recorded. 3. A recording method for recording copyright management information on a disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. The SI indicating the creator as the copyright management information of the disk
A method for recording copyright management information on a disc, comprising: a step of scrambling a D code; and a step of repeatedly recording the scrambled SID code in a variable length copyright management information area of the lead-in section a plurality of times. . 4. A recording method for recording copyright management information on a disc provided with a post cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. And scrambling, as the copyright management information of the disc, an SID code indicating a creator of the disc and an ISRC code indicating a program source recorded on the disc; and reading the scrambled SID code and ISRC code into the read Recording the copyright management information in the variable-length copyright management information area of the IN section a plurality of times repeatedly. 5. A recording method for recording copyright management information on a disc provided with a post cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. And S indicating the creator as the copyright management information of the disc.
A disc copyright comprising: a step of scrambling an encoded IFPI code as an ID code; and a step of laser-cutting the scrambled IFPI code into a barcode and writing the barcode in the post-cutting area. How to write management information. 6. A recording method for recording copyright management information on a disk provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from an inner circumference toward an outer circumference. And S indicating the creator as the copyright management information of the disc.
Scrambling an encoded IFPI code as an ID code and an ISRC code indicating a program source recorded on a disc; and performing a laser cutting of the scrambled IFPI code and the ISRC code into a bar code, and Writing the copyright management information of the disc having a step of writing to the cutting area. 7. A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from the inner circumference toward the outer circumference, wherein the copyright management information of the disk is provided. A sector in which a SID code indicating the creator is scrambled and a physical format in a control data section including 16 sectors of the lead-in section is recorded with physical format information in a control data section including 16 sectors of the lead-in section Disc recorded in multiple sectors other than. 8. A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section from an inner periphery toward an outer periphery, wherein the copyright management information of the disc is provided. , A SID code indicating its creator, and an ISRC code indicating a program source to be recorded on a disk are scrambled to record physical format information in a control data section comprising 16 sectors of the lead-in section. Disc recorded in multiple sectors other than. 9. A disc provided with a post-cutting area, a lead-in section, a data section, and a lead-out section in a direction from the inner circumference to the outer circumference. SI indicating the producer
A disk in which a D code is scrambled and repeatedly recorded in a variable length copyright management information area of the lead-in section a plurality of times. 10. A post cutting area, a lead-in section, a data section,
A disc provided with a lead-out portion, wherein an SID code indicating a creator of the disc as copyright management information of the disc and an ISRC code indicating a program source recorded on the disc are scrambled, and Disc recorded multiple times in the variable-length copyright management information area of the unit. 11. A post cutting area, a lead-in section, a data section,
A disc provided with a lead-out section, and as copyright management information of the disc, an S
A disk in which an encoded IFPI code as an ID code is scrambled and laser-cut into a barcode, and recorded in the post-cutting area. 12. A post cutting area, a lead-in part, a data part,
A disc provided with a lead-out section, wherein the copyright management information of the disc indicates the creator of the disc.
The scrambled and encoded IFPI code as the D code and the ISRC code indicating the program source recorded on the disk are scrambled and input, and the input IFPI code and ISRC code are laser-cut into bar codes. Disc written and written in the post-cutting area. 13. A post cutting area, a lead-in section, a data section,
A step of scrambling an SID code indicating a creator as copyright management information of a disc provided with a lead-out section; and a step of: converting the scrambled SID code into a control data section comprising 16 sectors of the lead-in section. Recording in a plurality of sectors other than the sector where the physical format information is recorded, reading the SID code recorded in the sector, descrambling the read SID code, Discriminating whether or not the SID code is legitimate, and permitting reproduction from the disc if the SID code is legitimate, and prohibiting reproduction if the SID code is not legitimate. 14. A post cutting area, a lead-in section, a data section,
Scrambling an SID code indicating a creator as copyright management information of a disc provided with a lead-out unit; and transmitting the scrambled SID code to a variable-length copyright management information area of the lead-in unit. Recording the SID code recorded in the copyright management information area; descrambling the read SID code; determining whether the descrambled SID code is legitimate; Discriminating whether the reproduction is normal and permitting reproduction from the disk, and prohibiting the reproduction if the reproduction is not proper. 15. A post cutting area, a lead-in section, a data section,
A step of scrambling an IFPI code as an SID code indicating a creator as copyright management information of a disk provided with a lead-out section, and the scrambled IFPI code is laser-cut into a barcode, Writing the post-cutting area; reading the IFPI code written in the post-cutting area; descrambling the read-out IFPI code; and descrambled the IFPI code Discriminating whether the disc is legitimate or not, permitting reproduction from the disc if the disc is legitimate, and prohibiting reproduction if the disc is not legitimate. 16. A post cutting area, a lead-in section, a data section,
As the copyright management information of the disk provided with each of the lead-out sections, an SID code indicating the creator is scrambled, and the scrambled SID code is used as a physical format in a control data section including 16 sectors of the lead-in section. What is claimed is: 1. A disk reproducing apparatus for reproducing a disk recorded in a plurality of sectors other than a sector in which physical format information is recorded in a control data portion comprising 16 sectors of said lead-in portion, wherein an SID code recorded in said sector S to read
ID code reading means, SI read by the SID code reading means
Descrambling means for descrambling the D code, and S descrambled by the descrambling means.
A disc playback device comprising: a playback control unit that determines whether an ID code is legitimate, and permits reproduction from the disc when the ID code is legitimate, and prohibits reproduction when the ID code is not legitimate. 17. A post cutting area, a lead-in section, a data section,
As the copyright management information of the disk provided with the lead-out section, an SID code indicating the creator of the disc is scrambled, and the scrambled SID code is stored in the variable-length copyright management information area of the variable length of the lead-in section. A SID code reading means for reading an SID code recorded in the copyright management information area; and a SI read by the SID code reading means.
Descrambling means for descrambling the D code, and S descrambled by the descrambling means.
A disc playback device comprising: a playback control unit that determines whether an ID code is legitimate, and permits reproduction from the disc when the ID code is legitimate, and prohibits reproduction when the ID code is not legitimate. 18. A post cutting area, a lead-in section, a data section,
And a lead-out section, and as a copyright management information of the disc, a scrambled and encoded IFPI code as an SID code indicating a creator of the disc is laser-cut into a bar code, and the post-cutting is performed. Disc reproducing apparatus for reproducing a disc recorded in an area, wherein an IF written in the post-cutting area
SID code reading means for reading a PI code, and IF read by the SID code reading means
Descrambling means for descrambling the PI code, and I descrambled by the descrambling means.
A disc playback device comprising: a playback control unit that determines whether an FPI code is legitimate, and permits reproduction from the disc when the FPI code is legitimate, and prohibits reproduction when the FPI code is not legitimate.