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Nikos Chantziaras <realnc@×××××.de> wrote: |
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> Joerg Schilling wrote: |
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> > There is no copy protection system for audio CDs. |
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> |
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> There is, unfortunately. An example is "Cactus Data Shield". The bad |
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> thing is that it even breaks the standard, resulting in the copy |
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> protected audio CD not playing back in some players (PC CD-ROMs for |
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> example or CD players with MP3 support). |
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So you see that there is no copy-protection for audio CDs. |
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As I mentioned, there are intentional defects. But cdda2wav can deal with all |
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these defects...... and most drive manufacturer did listen to me and implement |
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enhancements to their firmware to e.g. prevent the drive to go into an endless |
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loop with a "multi-session disk" that implements a TOC loop. |
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If you can play a CD, you can copy it. These defective 120mm disks implement |
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use/play protection. |
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If the defect you like to deal with is called "Cactus Data Shield", you need to |
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copy the CD-look-alike as early as possible as "Cactus Data Shield" mainly is |
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excessive (more than 10 times than allowed) C1 errors (these errors make the |
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disk junk from the Philips quality rules for CDs). |
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> Such CDs are actually required to refrain from using the "CDDA" logo on |
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> their casing. Some even mention that they are copy protected. |
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> |
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> See: |
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> |
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> http://en.wikipedia.org/wiki/Copy_protection#Copy_protection_for_audio_CDs |
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> |
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> for more info. |
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Unfortunately not very accurate :-( |
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> In any case, it's very difficult or even impossible to copy some of them |
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> with regular CD-ROM drives. Some require analog copying or using the |
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> digital-out connector of the drive. |
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|
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This info is incorrect. Cdda2wav includes fixes for all known defects in CDs. |
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I personally know of no such intentionally damaged disk that cannot be extracted |
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by cdda2wav -paranoia. |
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BTW: this is where you see that cdparranoia(1) is now 12 year old and |
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unmaintained since ~ 10 years. cdda2wav -paranoia gives much better results |
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that cdparanoia. |
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Jörg |
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|
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-- |
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EMail:joerg@××××××××××××××××××××××××.de (home) Jörg Schilling D-13353 Berlin |
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js@××××××××××××.de (uni) |
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joerg.schilling@××××××××××××××××.de (work) Blog: http://schily.blogspot.com/ |
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URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily |
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