WO2001080546A3 - Prevention of cd-audio piracy using sub-code channels - Google Patents

Prevention of cd-audio piracy using sub-code channels

Info

Publication number
WO2001080546A3
WO2001080546A3 PCT/IL2001/000295 IL0100295W WO2001080546A3 WO 2001080546 A3 WO2001080546 A3 WO 2001080546A3 IL 0100295 W IL0100295 W IL 0100295W WO 2001080546 A3 WO2001080546 A3 WO 2001080546A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
data
original
altered
recorded
medium
Prior art date
Application number
PCT/IL2001/000295
Other languages
French (fr)
Other versions
WO2001080546A2 (en )
Inventor
Ran Alcalay
Philippe Selve
Patrice Sinquin
Original Assignee
Ran Alcalay
Midbar Tech Ltd
Philippe Selve
Patrice Sinquin
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

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1262Formatting, e.g. arrangement of data block or words on the record carriers with more than one format/standard, e.g. conversion from CD-audio format to R-DAT format
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00188Circuits 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
    • G11B20/00202Circuits 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 wherein the copy protection scheme builds on multi-session recording, e.g. defective table of contents [TOC] in the 2nd session
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615Circuits 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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063Circuits 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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00659Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a control step which is implemented as an executable file stored on the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0092Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0092Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • G11B20/00956Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches said intentional errors occurring due to an invalid TOC

Abstract

A method for protecting data recorded on an original storage medium (20) against copying using an unauthorized data readout device. The data are encoded in accordance with Standard 908 of the International Electrotechnical Commission. A portion of the encoded data is altered to introduce a modification in a sub-code Q channel of the data, such that the altered data are inconsistent with an implementation of Standard 908 used in the data readout device, but do not prevent playback of the data following recording thereof. The data, including the altered data, are recorded on the original storage medium, whereby an application which plays back the recorded data runs in a manner substantially unaffected by the alteration of the data, but a substantially unrecoverable error occurs in unauthorized copying of the original storage medium.
PCT/IL2001/000295 1998-10-20 2001-03-29 Prevention of cd-audio piracy using sub-code channels WO2001080546A3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09370813 US6425098B1 (en) 1998-10-20 1999-08-09 Prevention of disk piracy
US09/549,820 2000-04-14
US09549820 US6988206B1 (en) 1998-10-20 2000-04-14 Prevention of CD-audio piracy using sub-code channels

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001576673A JP2004501477A (en) 2000-04-14 2001-03-29 Anti-piracy method of cd audio using the sub-code channel
CA 2422515 CA2422515C (en) 2000-04-14 2001-03-29 Prevention of cd-audio piracy using sub-code channels
EP20010919729 EP1297651A4 (en) 2000-04-14 2001-03-29 Prevention of cd-audio piracy using sub-code channels

Publications (2)

Publication Number Publication Date
WO2001080546A2 true WO2001080546A2 (en) 2001-10-25
WO2001080546A3 true true WO2001080546A3 (en) 2002-01-24

Family

ID=27005124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2001/000295 WO2001080546A3 (en) 1998-10-20 2001-03-29 Prevention of cd-audio piracy using sub-code channels

Country Status (1)

Country Link
WO (1) WO2001080546A3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425098B1 (en) 1998-10-20 2002-07-23 Midbar Tech (1998) Ltd. Prevention of disk piracy
US6988206B1 (en) 1998-10-20 2006-01-17 Macrovision Europe Limited Prevention of CD-audio piracy using sub-code channels
WO2002095735A3 (en) * 2001-05-21 2003-03-20 John Daniel Aquilino Apparatus and method for digital content concealment in a storage medium recorded using a recording device
GB0124723D0 (en) * 2001-10-15 2001-12-05 Macrovision Corp Improvements in or relating to the copy protection of optical discs
ES2221506B1 (en) * 2001-10-16 2005-10-01 Sonopress Ibermemory, S.A. Recording Procedure audio CD to prevent copying.
ES2211258B1 (en) * 2001-11-13 2005-05-16 Sonopress Ibermemory, S.A. Recording Method CD-audio to prevent copying.
CN1331125C (en) * 2001-11-15 2007-08-08 索尼音乐娱乐公司 System and method for controlling the use and duplication of digital content distributed on removable media
US6952479B2 (en) * 2001-11-27 2005-10-04 Macrovision Europe Limited Dynamic copy protection of optical media
US7151730B2 (en) 2001-12-06 2006-12-19 Macrovision Europe Limited Copy-protected compact disc and method for producing same
US7161885B2 (en) * 2002-12-06 2007-01-09 Macrovision Corporation Copy-protected compact disc and method for producing same
GB2386245B (en) 2002-03-08 2005-12-07 First 4 Internet Ltd Data protection system
CA2479184A1 (en) * 2002-03-14 2003-09-25 Cerberus Central Limited Improvements relating to security in digital data distribution
JP2003308651A (en) * 2002-04-12 2003-10-31 Hudson Soft Co Ltd Data modifying apparatus, modified data generating method, computer executionable program for modified data generating method, original data recording method, computer executionable program for original data recording method, recording medium, illegitimate reading execution preventing apparatus, illegitimate reading execution preventing method, and computer executionable program for illegitimate reading execution preventing method
WO2003088242A1 (en) * 2002-04-18 2003-10-23 Koninklijke Philips Electronics N.V. Method of copy detection and protection using time jumps
JP3821768B2 (en) * 2002-09-11 2006-09-13 ソニー株式会社 Information recording medium, information processing apparatus, information processing method, and computer program
FR2846179B1 (en) 2002-10-21 2005-02-04 Medialive adaptive and progressive scrambling audio stream
CA2427023A1 (en) * 2003-04-29 2004-10-29 Iline Entertainment Inc. Method and apparatus for the protection of fixed media
GB2402802B (en) 2003-06-09 2007-05-30 First 4 Internet Ltd Copy protection system for data carriers
GB2433157B (en) * 2003-06-09 2007-11-21 First 4 Internet Ltd Copy protection system for data carriers
JP2005038488A (en) 2003-07-18 2005-02-10 Teac Corp Optical disk device
DE102004015747A1 (en) * 2004-03-31 2005-10-13 Robert Bosch Gmbh Method and apparatus for reading or recording data
US7706661B2 (en) * 2004-05-19 2010-04-27 Macrovision Corporation Copy protection of optical discs using redundant control data
EP1866724A1 (en) * 2005-03-29 2007-12-19 Philips Electronics N.V. Method and device for protecting the contents of an information carrier

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008180A2 (en) * 1996-08-05 1998-02-26 T.T.R. Technologies Ltd. Digital optical media authentication and copy protection method
US5930209A (en) * 1996-07-24 1999-07-27 U.S. Philips Corporation Optical disc with sector address irregularities to prevent copying, and apparatus for recording and detecting such copy protection
US6104679A (en) * 1998-10-01 2000-08-15 T.T.R. Technologies Ltd. Method for determining an unauthorized copy of an optical disc

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5930209A (en) * 1996-07-24 1999-07-27 U.S. Philips Corporation Optical disc with sector address irregularities to prevent copying, and apparatus for recording and detecting such copy protection
WO1998008180A2 (en) * 1996-08-05 1998-02-26 T.T.R. Technologies Ltd. Digital optical media authentication and copy protection method
US6104679A (en) * 1998-10-01 2000-08-15 T.T.R. Technologies Ltd. Method for determining an unauthorized copy of an optical disc

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1297651A4 *

Also Published As

Publication number Publication date Type
WO2001080546A2 (en) 2001-10-25 application

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