Editing Compact disc (section)

== Copy protection ==
{{Main|Compact Disc and DVD copy protection}}
{{see also|Sony BMG copy protection rootkit scandal}}
The ''Red Book'' audio specification, except for a simple ''anti-copy'' statement in the subcode, does not include any [[copy protection]] mechanism. Known at least as early as 2001,<ref name="BadCDs"/> attempts were made by record companies to market ''copy-protected'' non-standard compact discs, which cannot be [[Ripping|ripped]], or copied, to hard drives or easily converted to other formats (like [[FLAC]], [[MP3]] or [[Vorbis]]). One major drawback to these copy-protected discs is that most will not play on either computer CD-ROM drives or some standalone CD players that use CD-ROM mechanisms. Philips has stated that such discs are not permitted to bear the trademarked ''Compact Disc Digital Audio'' logo because they violate the ''Red Book'' specifications. Numerous copy-protection systems have been countered by readily available, often free, software, or even by simply turning off automatic [[AutoPlay]] to prevent the running of the DRM [[executable]] program.