SG65741A1 - Recording apparatus reproducing apparatus and optical recording medium - Google Patents

Recording apparatus reproducing apparatus and optical recording medium

Info

Publication number
SG65741A1
SG65741A1 SG1998000564A SG1998000564A SG65741A1 SG 65741 A1 SG65741 A1 SG 65741A1 SG 1998000564 A SG1998000564 A SG 1998000564A SG 1998000564 A SG1998000564 A SG 1998000564A SG 65741 A1 SG65741 A1 SG 65741A1
Authority
SG
Singapore
Prior art keywords
recording medium
reproducing apparatus
optical recording
recording
optical
Prior art date
Application number
SG1998000564A
Other languages
English (en)
Inventor
Yoshizumi Inazawa
Tadao Suzuki
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of SG65741A1 publication Critical patent/SG65741A1/en

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
    • G11B20/00086—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
    • 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
    • G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00297—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
    • G11B20/00304—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
    • 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
    • G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
    • G11B20/00528—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
    • 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00594—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein the shape of recording marks is altered, e.g. the depth, width, or length of pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • G11B20/10407—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors by verifying the timing of signal transitions, e.g. rising or falling edges, or by analysing signal slopes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10453—Improvement or modification of read or write signals signal quality assessment physical shape of recording marks, e.g. their length, width, depth or contour
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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
    • G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SG1998000564A 1997-03-19 1998-03-16 Recording apparatus reproducing apparatus and optical recording medium SG65741A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6521997 1997-03-19

Publications (1)

Publication Number Publication Date
SG65741A1 true SG65741A1 (en) 1999-06-22

Family

ID=13280593

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998000564A SG65741A1 (en) 1997-03-19 1998-03-16 Recording apparatus reproducing apparatus and optical recording medium

Country Status (8)

Country Link
US (1) US6157606A (de)
EP (1) EP0866454B1 (de)
JP (1) JP3963037B2 (de)
KR (3) KR100551234B1 (de)
CN (2) CN1118804C (de)
AU (1) AU729582B2 (de)
MY (1) MY116418A (de)
SG (1) SG65741A1 (de)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1791128A1 (de) 1997-10-21 2007-05-30 Sony Corporation Wiedergabegerät, Wiedergabeverfahren, Aufzeichnungsgerät, Aufzeichnungsverfahren, Aufzeichnungs-/Wiedergabegerät, Aufzeichnungs-/Wiedergabeverfahren, Aufzeichnungsmedium
US6587948B1 (en) * 1998-02-13 2003-07-01 Sony Corporation Recording apparatus, recording medium, playback apparatus, recording method and playback method
GB9809450D0 (en) * 1998-05-01 1998-07-01 Wandel & Goltermann Limited Jitter measurement
US7457415B2 (en) * 1998-08-20 2008-11-25 Akikaze Technologies, Llc Secure information distribution system utilizing information segment scrambling
US6665240B1 (en) * 1998-10-07 2003-12-16 Sony Corporation Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk
KR100575817B1 (ko) * 1998-12-31 2006-08-31 엘지전자 주식회사 디지탈데이터의복사방지장치
EE200000688A (et) * 1999-03-23 2002-04-15 Koninklijke Philips Electronics N.V. Infokandja, kodeerimisseade, kodeerimismeetod, dekodeerimisseade ja dekodeerimismeetod
DE60004144T2 (de) 1999-03-23 2004-05-27 Koninklijke Philips Electronics N.V. Verfahren zur dekodierung von einem strom von kanalbits
JP3292298B2 (ja) 1999-07-14 2002-06-17 ソニー株式会社 情報記録装置、情報記録方法、情報記録媒体、情報再生装置及び情報再生方法
EP1275114A1 (de) * 2000-03-30 2003-01-15 Koninklijke Philips Electronics N.V. Ein verfahren zur kodierung eines bitstromes von einem binären quellsignal in einen bitstrom von einem binären kanalsignal
WO2001075875A1 (en) * 2000-03-30 2001-10-11 Koninklijke Philips Electronics N.V. A method for encoding a stream of bits of a binary source signal into a stream of bits of a binary channel signal
US6961095B2 (en) * 2000-08-04 2005-11-01 Silicon Image, Inc. Digital display jitter correction apparatus and method
US7003046B2 (en) * 2000-12-28 2006-02-21 Victor Company Of Japan, Ltd. Modulation system
KR100475604B1 (ko) 2001-03-09 2005-03-10 엘지전자 주식회사 재생전용 광디스크와, 그 재생전용 광디스크 장치에서의재생방법
US20020136136A1 (en) * 2001-03-26 2002-09-26 Daniel Gelbart Method for storing data using VCSEL device
FR2823039B1 (fr) * 2001-03-30 2003-08-01 Canal Plus Technologies Systeme et procede de transmission d'informations chiffrees a cle chiffree
WO2003015088A1 (en) * 2001-08-10 2003-02-20 Durand Technology Limited Method of authenticating cds
JP3779580B2 (ja) * 2001-09-27 2006-05-31 株式会社東芝 信号処理方法及び装置、信号再生方法及び装置、記録媒体
US7372964B2 (en) 2001-10-10 2008-05-13 Kabushiki Kaisha Toshiba Method and apparatus for recording information including secret information and method and apparatus for reproduction thereof
JP3688628B2 (ja) 2001-11-09 2005-08-31 株式会社東芝 信号処理方法及び装置、信号再生方法及び装置、記録媒体
JP4195573B2 (ja) * 2002-04-03 2008-12-10 Ｔｄｋ株式会社 記録データの記録方法、記録データの再生方法、記録装置、再生装置、および多層光記録媒体
EP1353330A1 (de) * 2002-04-09 2003-10-15 Matsushita Electric Industrial Co., Ltd. Informationsaufzeichnungsmedium, Aufzeichnungsgerät, und Wiedergabegerät
TWI359409B (en) * 2002-06-05 2012-03-01 Lg Electronics Inc High-density optical disc, method for recording an
KR100915875B1 (ko) * 2002-06-05 2009-09-07 엘지전자 주식회사 고밀도 재생 전용 광디스크와, 그 광디스크의 암호화 기록및 재생방법
BR0305027A (pt) * 2002-06-05 2004-07-20 Lg Electronics Inc Estrutura de uma área de ligação formada em um meio de gravação somente de leitura de alta densidade e método e aparelho de fabricação/reprodução da mesma
JP2006524403A (ja) * 2003-04-23 2006-10-26 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ コピー防止データ担体
KR100974448B1 (ko) * 2003-04-24 2010-08-10 엘지전자 주식회사 광디스크의 복사 방지 정보 관리방법
KR100974449B1 (ko) * 2003-04-24 2010-08-10 엘지전자 주식회사 광디스크의 복사 방지 정보 관리방법
US7087936B2 (en) * 2003-04-30 2006-08-08 Cree, Inc. Methods of forming light-emitting devices having an antireflective layer that has a graded index of refraction
JP4346361B2 (ja) * 2003-06-30 2009-10-21 パイオニア株式会社 情報記録媒体、情報再生装置及び情報再生方法
JP2007519278A (ja) * 2003-07-04 2007-07-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ コピープロテクトソフトウェアを実行するための装置
JP4139801B2 (ja) * 2003-09-11 2008-08-27 シャープ株式会社 情報記録媒体再生装置、及び情報記録媒体再生方法
JPWO2005086147A1 (ja) * 2004-03-04 2008-01-24 ソニー株式会社 光ディスク装置の光学ヘッド及びその光検出装置
US20060002269A1 (en) * 2004-06-30 2006-01-05 Eric Bourget Information storage device capable of impairing optical integrity of an optical storage medium thereof
JP4936652B2 (ja) 2004-08-26 2012-05-23 ソニー株式会社 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
US20060250912A1 (en) * 2005-05-09 2006-11-09 Pratt Thomas L System and method for multi-laser optical medium
US7991045B2 (en) * 2005-06-10 2011-08-02 Hon Hai Precision Industry Co., Ltd. Device and method for testing signal-receiving sensitivity of an electronic subassembly
JP4484785B2 (ja) * 2005-08-09 2010-06-16 ソニー株式会社 記録方法
KR101229493B1 (ko) * 2005-10-26 2013-02-04 삼성전자주식회사 기록 방지 기능을 효과적으로 수행할 수 있는 정보 저장매체, 기록/재생 장치 및 기록/재생 방법
WO2007116401A1 (en) * 2006-04-10 2007-10-18 Mempile Inc. Secured optical information carrier, and data encryption method and apparatus for recording data in the optical information carrier
US20080094592A1 (en) * 2006-08-31 2008-04-24 Nikon Corporation Movable body drive method and movable body drive system, pattern formation method and apparatus, exposure method and apparatus, and device manufacturing method
US7609193B2 (en) * 2007-12-14 2009-10-27 Symbol Technologies, Inc. Method and system for a configurable communications interface
US8174953B2 (en) * 2009-06-11 2012-05-08 Texas Instruments Incorporated Input current channel device
DE102009054056A1 (de) 2009-11-20 2011-05-26 Kdg Mediatech Ag Signal für einen optischen Datenträger, optischer Datenträger, Vorrichtung zum Schreiben oder Lesen eines solchen Signales
KR101729663B1 (ko) * 2015-12-31 2017-04-24 에스케이텔레콤 주식회사 양자 노이즈 기반 난수생성기의 성능을 관리하기 위한 장치 및 방법

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827544A (ja) * 1981-08-10 1983-02-18 住友電気工業株式会社 多項目患者モニタ−を有する測定装置
US4644545A (en) * 1983-05-16 1987-02-17 Data General Corporation Digital encoding and decoding apparatus
JP2915098B2 (ja) 1990-06-29 1999-07-05 株式会社日立製作所 ディジタル信号記録再生装置
JP3341291B2 (ja) * 1991-11-22 2002-11-05 ソニー株式会社 受信装置
EP0930614B1 (de) 1991-12-02 2004-03-31 Philips Electronics N.V. Geschlossenes Informationssystem mit Kopierschutz
US5517533A (en) * 1992-03-04 1996-05-14 Digital Equipment Corporation Parallel implementation of run length coding apparatus and method
JP3459080B2 (ja) * 1992-06-19 2003-10-20 ソニー株式会社 記録媒体およびその記録装置並びに記録媒体記録方法
JPH0728406A (ja) * 1993-07-15 1995-01-31 Nec Corp スクランブル方法
JP2776209B2 (ja) * 1993-07-22 1998-07-16 日本ビクター株式会社 光ディスク及び情報記録再生装置
US5450489A (en) * 1993-10-29 1995-09-12 Time Warner Entertainment Co., L.P. System and method for authenticating software carriers
JP3763419B2 (ja) * 1994-03-11 2006-04-05 パイオニア株式会社 情報記録装置及び情報記録方法
JPH087340A (ja) * 1994-06-20 1996-01-12 Alps Electric Co Ltd 記録媒体、及び、その記録媒体を用いた光ディスク装置
JPH0845188A (ja) * 1994-07-29 1996-02-16 Sony Corp 記録媒体並びにその記録装置および再生装置
JP2970739B2 (ja) * 1994-09-30 1999-11-02 日本ビクター株式会社 光ディスクの再生制御方法
KR100465551B1 (ko) * 1994-11-17 2005-04-19 마츠시타 덴끼 산교 가부시키가이샤 마킹생성장치,광디스크의레이저마킹형성방법,재생장치,광디스크및광디스크제조방법
JPH0917119A (ja) * 1995-06-30 1997-01-17 Sony Corp データ記録媒体、データ記録方法及びデータ再生方法
JP3674092B2 (ja) * 1995-08-09 2005-07-20 ソニー株式会社 再生装置
JPH103256A (ja) * 1995-10-16 1998-01-06 Sony Corp 暗号化方法、暗号化装置、記録方法、復号化方法、復号化装置及び記録媒体
US6600029B1 (en) 1995-12-19 2003-07-29 Regents Of The University Of Minnesota Metabolic engineering of polyhydroxyalkanoate monomer synthases
US5809546A (en) * 1996-05-23 1998-09-15 International Business Machines Corporation Method for managing I/O buffers in shared storage by structuring buffer table having entries including storage keys for controlling accesses to the buffers
JPH103746A (ja) * 1996-06-12 1998-01-06 Mitsubishi Electric Corp 著作権保護システム
JP3861269B2 (ja) * 1996-07-16 2006-12-20 ソニー株式会社 光ディスク装置、光ディスクの記録方法、光ディスク及び光ディスクの製造方法

Also Published As

Publication number Publication date
CN1516157A (zh) 2004-07-28
CN1118804C (zh) 2003-08-20
AU5938498A (en) 1998-09-24
KR100551234B1 (ko) 2006-06-15
US6157606A (en) 2000-12-05
CN1206184A (zh) 1999-01-27
AU729582B2 (en) 2001-02-08
EP0866454B1 (de) 2013-05-08
KR19980080316A (ko) 1998-11-25
MY116418A (en) 2004-01-31
KR20060087378A (ko) 2006-08-02
KR20060086810A (ko) 2006-08-01
EP0866454A3 (de) 2009-01-21
KR100617533B1 (ko) 2006-09-01
JP3963037B2 (ja) 2007-08-22
JPH10320779A (ja) 1998-12-04
EP0866454A2 (de) 1998-09-23
KR100617586B1 (ko) 2006-09-01

Similar Documents

Publication Publication Date Title
SG65741A1 (en) Recording apparatus reproducing apparatus and optical recording medium
SG64485A1 (en) Optical recording medium and optical disk apparatus
EP0986051A4 (de) Auzeichnungsträger und wiedergabegerät dafür
TW433529U (en) Recording medium and optical disk apparatus
SG72852A1 (en) Optical recording medium and recording and reproducing method using the same
HK1068451A1 (en) Optical recording medium and optical recording/reproducing method and apparatus
EP0895226A4 (de) Optische platte und aufzeichnungs-/wiedergabegerät dafür
SG47218A1 (en) Optical recording medium method for recording/reproducing the optical recording medium and apparatus for recording/reproducing the optical recording medium
HK1001317A1 (en) Recording medium and reproducing apparatus thereof
GB9706205D0 (en) Optical disk recording medium and optical disk drive apparatus
EP0757350A3 (de) Informationsaufzeichnungsmedium und -wiedergabegerät
HK1005115A1 (en) Recording medium and apparatus for reproducing data
HK1048558A1 (en) Information record medium and apparatus for reproducing the same
HUP9802440A3 (en) Reproducing apparatus, recording apparatus and recording medium
EP0858073A4 (de) Aufzeichnungsmedium und wiedergabevorrichtung
EP0689206A4 (de) Datenaufzeichnungsmedium und datenwiedergabevorrichtung
EP0887202A4 (de) Optisches aufzeichnungsmedium
AU2575095A (en) Information recording medium and information reproducing apparatus
HK1024973A1 (en) Data recording medium and data reproducing apparatus
EP0588305A3 (en) Optical information recording medium and optical information recording/reproducing apparatus
SG64456A1 (en) Optical information recording medium
EP0776004A3 (de) Optisches System zur Aufzeichnung und Wiedergabe eines optischen Informationsaufzeichnungsmediums
EP0686968A3 (de) Optisches Informationsaufzeichnungsmedium, optisches Informationsaufzeichnungsverfahren, und optisches Informationswiedergabegerät
EP0709837A3 (de) Optische Platten und deren Aufzeichnung/Wiedergabe
EP0713212A3 (de) Optisches Informationsaufzeichnungs und -wiedergabegerät