WO2004072972A1 - データの記録再生方法,及び記録再生装置 - Google Patents
データの記録再生方法,及び記録再生装置 Download PDFInfo
- Publication number
- WO2004072972A1 WO2004072972A1 PCT/JP2004/001094 JP2004001094W WO2004072972A1 WO 2004072972 A1 WO2004072972 A1 WO 2004072972A1 JP 2004001094 W JP2004001094 W JP 2004001094W WO 2004072972 A1 WO2004072972 A1 WO 2004072972A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- identification information
- data
- recording
- recording medium
- recorded
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00115—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers wherein the record carrier stores a unique medium identifier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
- G11B20/00195—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
- G11B20/00702—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are recorded on the recording medium
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
Definitions
- the present invention relates to a data recording / reproducing method and a recording apparatus, and a reproducing method and a reproducing apparatus for restricting illegal copying of data such as content data.
- CD-R Compact Disc-Recordable
- Digital data can be easily written to a CD-R using an information processing device such as a personal computer.
- CD-R is a write-once type recording medium that allows digital data to be written only once. Data is written to this disc using write control software that controls the writing of data overnight. By performing writing, data can be additionally written to an unrecorded area of the CD-R after one recording operation. In other words, the CD-R can be used as a write-once recording medium that enables additional recording of data by writing data using appropriate write control software. .
- CD-R can provide such functions, it is widely used as a recording medium for various data such as audio data, video data, and document data.
- a CD-R as a recording medium for various data, there is one as described in Japanese Patent Application Laid-Open No. 2000-31111 You.
- CDR since CDR does not have a unique ID (Identifier) for specifying the CDR, it is used as a recording medium for illegal copying of data.
- CD-R is a recording for extracting and copying only a part of songs from an audio CD that records music content, or collecting and copying a plurality of songs appropriately selected from multiple audio CDs. Used as a medium.
- CD-R is used as a recording medium for music and other content collected over a communication network such as Inuichi Net, and is used to record collected content data when distributing it to others. Used as a medium.
- An object of the present invention is to provide a data recording method and a data recording apparatus, and a reproducing method and a reproducing apparatus, which can solve the problems of the conventional technique as described above.
- a data recording method when recording data on a recording medium by a recording device, identification information for identifying the recording medium is read from the recording medium, and the recording device reads the identification information.
- the recording device reads the identification information.
- the data is recorded on a recording medium.
- the data recording method when data is recorded on a recording medium by a recording device, if the recording medium does not record identification information for identifying the recording medium, the identification information is created. In addition, the created identification information and the data are recorded on a recording medium, and the created identification information is stored in a recording device. Furthermore, in the recording method according to the present invention, when identifying the data on the recording medium by the recording device, it is determined whether or not identification information for identifying the recording medium is recorded on the recording medium. As a result, when the above-mentioned identification information is not recorded on the recording medium, the identification information is created, the created identification information and the data are recorded on the recording medium, and the discriminated identification information is stored in the recording device. When the identification information is recorded on the recording medium, the identification information is read from the recording medium. When the recording device stores the read identification information, the data is recorded on the recording medium.
- the data in the data recording step, is encrypted with the key data formed using the identification information, and the encrypted data is recorded on a recording medium.
- the identification information is created based on information unique to the recording device.
- a reading unit for reading identification information for identifying the recording medium from the recording medium, a storage unit for storing the identification information, and a reading unit for reading the identification information.
- a determination unit configured to determine whether the identification information is stored in the storage unit. The determining means records the data on the recording medium when determining that the identification information read by the reading means is stored in the storage means.
- the present invention provides a recording apparatus for recording data on a recording medium, comprising: a determination unit for determining whether or not identification information for identifying the recording medium is recorded on the recording medium; and a creation unit for creating the identification information. And a storage means for storing the identification information.
- the determination means determines that the identification information is not recorded on the recording medium
- the creation means creates the identification information, and the created identification information is stored in the storage medium. The data and are recorded on the recording medium, and the created identification information is stored in the storage means.
- the present invention relates to a recording device for recording data on a recording medium, comprising: reading means for reading identification information for identifying the recording medium from the recording medium; creating means for creating the identification information; and storing the identification information.
- the reading means determines that the identification information is not recorded on the recording medium
- the creating means creates the identification information, and compares the created identification information with the data. Record on recording media
- the recorded identification information is stored in the storage means, and when the reading means determines that the identification information is recorded on the recording medium, the data is recorded on the recording medium.
- the present invention relates to a data reproducing method, in which identification information and data encrypted based on the identification information are recorded and the identification information and the data are read out from a recording medium, and based on the read identification information. The read data is decoded into reproduction data, and reproduction is performed from this reproduction data.
- the present invention provides a reading means for reading the identification information and the data from a recording medium on which the identification information and data encrypted based on the identification information are recorded; A decoding means for decoding the data read based on the reproduced data all at once; and a reproducing means for creating the reproduced data obtained by the decoding means.
- the data is recorded, and identification information unique to the recording medium stored in the device used for recording the data is recorded.
- FIG. 1 is a block diagram showing a personal computer constituting a recording apparatus according to the present invention and a CD player constituting a reproducing apparatus.
- Fig. 2A is a diagram showing song files, a database, and a copy routine stored in the hard disk drive.
- Fig. 2B is a diagram showing data recorded on a CD-R.
- ⁇ Fig. 3 is a diagram using a personal computer. This is a flowchart showing a procedure for copying a song.
- BEST MODE FOR CARRYING OUT THE INVENTION a data recording method and a data recording apparatus according to the present invention, and a reproducing method and a reproducing method are described. The device will be specifically described.
- a CD-R (Co-act disc-recordable) 20 is used as a recording medium for copying, that is, recording content data such as music.
- the personal computer 10 is used as a means for recording, and the CD player 30 is used as a means for reproducing a CD-R on which content is recorded by the personal computer 10.
- a personal computer 10 constituting a recording device includes a main body 11 having a built-in arithmetic unit and information processing unit constituting a computer, a hard disk device 12 for recording music data, and an encoder 13. It has a recording circuit 14, a CD-R drive device 15, and a storage means 100 for a copy routine.
- the main body unit 11 includes a CPU (Central Processing Unit), a hard disk device, a memory, an input / output interface, a user interface, and the like, and forms a main part of the personal computer.
- a CPU Central Processing Unit
- the hard disk device 12 constituting the main unit 11 stores a song file 200 including a plurality of songs (songs 1 to N) for which copying is permitted in a predetermined format. Stored in file state.
- music 1 to music N stored in the hard disk drive are converted to digital audio data by, for example, ATRAC 3 (registered trademark) (Adaptive Transform Acoustic Coding 3) method. Data is compressed.
- the hard disk drive 12 is provided with a database DTBS as shown in FIG. 2A.
- the database DTBS includes a disc ID for identifying the CD-R20, the number of songs recorded on the CD-R20, and the total data amount (bytes) of the song as described later. It is stored in the form of a list.
- the hard disk device 12 can use the one built in the main body 11. That is, the hard disk device 12 may use a part of a hard disk device in which an OS (Operating System) of the personal computer 10 and applications are installed.
- the encoder 13 is used for decoding audio data of a music piece recorded on the hard disk device 12 when the music piece is copied to the CD-R 20.
- the recording circuit 14 when recording data, the recording circuit 14 performs an encoding process for performing error correction on the recorded data and performs a modulation process for recording. Then, the CD-R drive device 15 optically records the recording signal output from the recording circuit 14 on the CD-R 20.
- the copy routine 100 includes, for example, a procedure as shown in FIG. 3 so that when copying a song to a CD-R20, only an appropriate copy is executed. Control the recording operation.
- the copy routine 100 is stored in a storage unit (not shown), a hard disk drive 12 can be used as the storage unit. In this example, the copy routine 100 is stored in the hard disk drive 12.
- CD player 3 0 used in the present invention, is configured as a portable, a CD drive unit 3 1, a reproducing circuit 32, a decoder 3 3, c CD drive unit 3 1 and a amplifier 34, CD — This part optically reads the data of the song recorded in R.
- the playback circuit 32 performs demodulation processing and error correction on the playback signal read from the CD drive 31. Performs decoding and outputs the original audio signal.
- the decoder 33 performs a process of decoding the encrypted audio data and a process of expanding the compressed audio data.
- the music recorded on the CD-R 20 reproduced by the CD player 30 described above is output as an analog audio signal, and is reproduced by the headphones 35 as sound audible to human ears.
- a copy routine 100 for copying music stored in the hard disk drive 12 to the CD-R 20 using the personal computer 10 constituting the recording device according to the present invention is as follows. Is performed as follows.
- any one of the songs 1 to N stored in the eighteen disc device 12 is copied to the CD-R 20.
- CD-R drive unit 15 unused CD-R20
- the copy routine 100 is executed. Then, the processing of the copy routine 100 starts at step 101, and then at step 102, is the CD-R 20 mounted on the CD-R drive device 15 unrecorded? It is checked whether it is.
- the unrecorded CD-R indicates a CD-R that has not been recorded by the recording method of the present invention.
- An unrecorded CD-R indicates a CD-R in which a disc ID described later is not recorded in a predetermined recording area, and a CD-R on which data or the like is recorded by a method not according to the recording method according to the present invention. Even for R, if there is a valid unrecorded area, it includes the unrecorded CD-R used in the present invention.
- step 102 If it is detected in step 102 that an unrecorded CD-R has been mounted in the CD-R drive device 15, the process proceeds to step 103, and the disk ID is formed in this step 103. Is done.
- This disc ID is an identification code unique to CD-R20. In this example, a random number having a predetermined bit length is generated using information of hardware of the personal computer 10 as a seed, and the random number is generated. It is formed by processing.
- step 104 the disc ID formed in step 103 is recorded in a predetermined recording area of CD-R20.
- the check of unrecorded CD-R in step 102 is performed using the recorded disk ID.
- step 1 1 awaiting designation of a song to be copied to CD-R 20 among songs 1 to N prepared in the hard disk device 12.
- step 112 the main key data for encryption is prepared. That is, sub key data is formed using the disk ID formed in step 103, and the main key data is encrypted by the sub key data. If there are a plurality of songs specified in step 111, the main key data after encryption is different for each song.
- step 113 in which the hardware Of the songs 1 to N prepared in the disk device 12, the file of the song specified in step 11 1 is encrypted. In this encryption, the main key data prepared in steps 1 and 12 is used.
- step 114 the music file processed in step 113 is stored in a CD-ROM. Recorded in R 20.
- step 115 in which the database DTBS in the hard disk device 12 is updated.
- the disc ID created in step 103 the number of songs copied to CD-R20, and the total data amount of the song (The number of bytes) are written to the database DTBS as a set of these.
- the disk ID written in the database DTBS is the disk ID formed in step 103, but is also the disk ID written in the CD-R 20 in step 104. Then, the process proceeds to step 1 16, and the copying of the music to the CD-R 20 ends.
- steps 101 to 104 and 111 to 116 if an unrecorded CD-R 20 is prepared, the songs prepared on the hard disk device 12 are replaced with CD_R 2 Copied to 0. At this time, the CD-R 20 is given a unique disk ID, and the disk ID is also registered in the database DTBS. The reproduction of CD-R 20 will be described later. .
- the additional copy of a song means a case where a new song is additionally copied to the CD-R 20 using the same personal computer that copied the song to the CD-R 20. Additional copies of songs on the same CD-R 20 using the same personal computer 10 are permitted.
- step 102 the CD-R 20 on which the music has been copied in the above-described procedure is set in the CD-R drive device 15 and the copy routine 100 is executed. Then, in step 102, the CD-R 20 set in the CD-R drive unit 15 is not recorded. It is detected that it is not a record, and the process proceeds from step 102 to step 121.
- step 121 the disk ID is read from CD-R20, and then in step 122, the disk ID read in step 121 is included in the data base DTBS. Is determined. In this case, since the disk ID of CD-R 20 has already been recorded by the personal computer 10, the disk ID read from CD-R 20 exists in the database DTBS.
- step 122 proceeds from step 122 to step 111. Therefore, after that, the process from step 11 onward is executed in the same manner as when a song is first copied to an unrecorded CD-R, and the song is copied to CD-R 20 through the same procedure as described above. Additional copies will be made.
- the songs stored on the hard disk drive 12 can be newly copied. Can be.
- the personal computer 10 used to copy the music to the CD-R 20 on which the music prepared in the hard disk drive 12 was copied is used.
- a description will be given of an operation of copying a song by further adding the song to a CD-R 20 once the song has been copied by a personal computer 10X different from the above.
- the personal computer 10X used here has the same function as the personal computer 10 used before.
- CD- R 2 0 to add copy one song using a personal computer 1 0 other personal computer 1 0 X except that once carried a copy of the song is prohibited c
- step 102 the CD-CD set in the R-drive device 15 is read. It is detected that R 20 is not unrecorded, and the processing of step 102 is changed to the processing of step 121. move on.
- step 121 the disk ID is read from CD-R20, and then in step 122, the disk ID read in step 121 is included in the data base DTBS. It is determined whether it has been performed.
- the CD-R20 set in the personal computer 10X has been copied by another personal computer 10 so that the personal computer 10X has There is no disk ID in the database DTBS of the hard disk drive 12 equal to the disk ID read from the CD-R 20. Therefore, the process proceeds from step 122 to step 116, and ends the copy routine 100.
- the personal computer 10X is a personal computer having the same function as the personal computer 10 used previously, even if the personal computer 10X copies the music by the personal computer 10 to another CD-R20, It is not possible to make additional copies of the song using the Combination 10X, which means that additional copying is prohibited.
- CD-R20 is equivalent to a CD-ROM (Co-act disk Read Only Memory) from a personal computer other than the personal computer that once copied the song. Yes, and the recorded songs are encrypted. Therefore, CD-R20 is inconvenient for illegal distribution and can prevent the spread of copies.
- CD-ROM Co-act disk Read Only Memory
- the CD-R 20 on which the song has been copied can be reproduced using the CD player 30.
- the CD drive 31 reads the data of the music recorded on the CD-R 20.
- the music data read from the CD drive unit 31 is input to the reproduction circuit 32, where demodulation and error correction processing is performed.
- the playback circuit 32 outputs the disc ID of the CD-R 20 to be played back and the signal of the encrypted music.
- These signals are supplied to the decoder 33, where the key data for decryption is formed by using the extracted disk ID, and the signal of the music piece encrypted by the key data is decrypted.
- the signal of the tune is supplied to the headphone 35 via the amplifier 34.
- the music signal supplied to the headphone 35 as an analog signal is reproduced as sound that can be heard by human ears.
- CD-R Compact Disc Rewritable
- CD-RW Compact Disc Rewritable
- RW DVD Rewritable
- the information to be copied is not limited to music, but may be images such as still images and moving images, texts such as sentences, data based on various data, programs, and electronic files. I just need.
- the hard disk device records the audio data of a song in a compressed form.
- audio data and the like may be recorded in the hard disk device 12 without being compressed.
- data may be compressed prior to encryption.
- the audio data of the music stored in the hard disk device 12 may be compressed and encrypted at the same time.
- encoder 13 is unnecessary.
- the encoder 13 can be realized by software processing of the main body 11 when the arithmetic circuit of the main body 11 has room.
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04708010A EP1580746A1 (en) | 2003-02-12 | 2004-02-04 | Data recording/reproduction method and recording/reproduction device |
US10/542,431 US20060126465A1 (en) | 2003-02-12 | 2004-02-04 | Recording and reproducing method and recording and reproducing device for data |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003033998 | 2003-02-12 | ||
JP2003-33998 | 2003-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004072972A1 true WO2004072972A1 (ja) | 2004-08-26 |
Family
ID=32866254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001094 WO2004072972A1 (ja) | 2003-02-12 | 2004-02-04 | データの記録再生方法,及び記録再生装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060126465A1 (ja) |
EP (1) | EP1580746A1 (ja) |
KR (1) | KR20050105180A (ja) |
CN (1) | CN1748256A (ja) |
WO (1) | WO2004072972A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1855285A2 (en) | 2006-05-10 | 2007-11-14 | Nero AG | Apparatus for writing data having a data amount on a storage medium |
US8261097B2 (en) * | 2006-12-28 | 2012-09-04 | Teac Corporation | Data recorder having data encryption function and data reproducing device |
KR20080067075A (ko) * | 2007-01-15 | 2008-07-18 | 주식회사 히타치엘지 데이터 스토리지 코리아 | 광디스크의 암호화 데이터 기록 및 재생방법 |
EP2309735A4 (en) * | 2008-06-30 | 2013-10-09 | Nikon Corp | RECORDING CONTROL DEVICE |
US20110087591A1 (en) * | 2009-10-08 | 2011-04-14 | Tim Barnett | Personalization Data Creation or Modification Systems and Methods |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH07287655A (ja) * | 1994-04-18 | 1995-10-31 | Ricoh Co Ltd | 情報処理装置 |
JPH09115241A (ja) * | 1995-06-30 | 1997-05-02 | Sony Corp | データ記録装置及び方法、データ再生装置及び方法、並びに記録媒体 |
JP2000011535A (ja) * | 1998-06-26 | 2000-01-14 | Sony Corp | 情報記録媒体、記憶媒体、情報再生装置および方法、情報記録再生装置および方法、並びに提供媒体 |
JP2000187935A (ja) * | 1998-07-22 | 2000-07-04 | Matsushita Electric Ind Co Ltd | ディジタルデ―タ記録装置及びその方法並びにそのプログラムを記録したコンピュ―タ読み取り可能な記録媒体 |
JP2001273705A (ja) * | 2000-01-18 | 2001-10-05 | Sony Corp | 記録媒体及びその識別方法並びにその記録再生装置 |
JP2001332020A (ja) * | 2000-05-22 | 2001-11-30 | Taiyo Yuden Co Ltd | データ処理装置およびデータ処理方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1156846C (zh) * | 1999-08-25 | 2004-07-07 | 索尼公司 | 数据重放方法和重放装置以及数据处理系统 |
JP3292181B2 (ja) * | 1999-09-20 | 2002-06-17 | ヤマハ株式会社 | Cd−rwディスクの消去方法およびcd−rw記録装置 |
-
2004
- 2004-02-04 KR KR1020057013648A patent/KR20050105180A/ko not_active Application Discontinuation
- 2004-02-04 WO PCT/JP2004/001094 patent/WO2004072972A1/ja active Application Filing
- 2004-02-04 EP EP04708010A patent/EP1580746A1/en not_active Withdrawn
- 2004-02-04 US US10/542,431 patent/US20060126465A1/en not_active Abandoned
- 2004-02-04 CN CNA2004800040516A patent/CN1748256A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07287655A (ja) * | 1994-04-18 | 1995-10-31 | Ricoh Co Ltd | 情報処理装置 |
JPH09115241A (ja) * | 1995-06-30 | 1997-05-02 | Sony Corp | データ記録装置及び方法、データ再生装置及び方法、並びに記録媒体 |
JP2000011535A (ja) * | 1998-06-26 | 2000-01-14 | Sony Corp | 情報記録媒体、記憶媒体、情報再生装置および方法、情報記録再生装置および方法、並びに提供媒体 |
JP2000187935A (ja) * | 1998-07-22 | 2000-07-04 | Matsushita Electric Ind Co Ltd | ディジタルデ―タ記録装置及びその方法並びにそのプログラムを記録したコンピュ―タ読み取り可能な記録媒体 |
JP2001273705A (ja) * | 2000-01-18 | 2001-10-05 | Sony Corp | 記録媒体及びその識別方法並びにその記録再生装置 |
JP2001332020A (ja) * | 2000-05-22 | 2001-11-30 | Taiyo Yuden Co Ltd | データ処理装置およびデータ処理方法 |
Also Published As
Publication number | Publication date |
---|---|
US20060126465A1 (en) | 2006-06-15 |
KR20050105180A (ko) | 2005-11-03 |
EP1580746A1 (en) | 2005-09-28 |
CN1748256A (zh) | 2006-03-15 |
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