This made interesting reading and clarified a few points.
http://www.cs.princeton.edu/~jhalderm/cd3/
Any similar links would appreciated
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CDS-200 technology provides full playability of music CD on both standard audio players and PCs, enabling music rights owners to protect their content from unauthorized duplication, copying to PCs and/or CD-Rs, and file sharing on the Internet.
The CDS-200 data session contains protected and compressed music files for PC playback. These files can only be played from the original disc through a dedicated secure player and cannot be ripped (copied) to the PC’s hard drive.
CDS-200 is the leading CD copy protection technology on the market today, having already protected over 150 million commercial CDs worldwide.
Features
Enables playback on audio players – from low-end CD players to high-end DVD players.
Enables playback on PCs and Macs through a dedicated secure player.
Prevents digital compression of music to other formats (such as MP3 file types).
Restricts digital copying of music to a CD-R.
Benefits
Allows consumers to listen to music on any standard audio CD players, PCs, or Macintosh.
Maintains optimum audio sound quality.
Applied during mastering process, requires no modifications during pre-mastering or in the studio.
Product Specifications/Requirements
Enables playback on standard audio players.
Enables playback on PCs and Macs.
No modification is made to the audio content.
Supports up to 72 minutes of music.
Compatible with CD production and test equipment.
Requires a CDS Processor at the mastering house and/or replicator:
A stand-alone processor that is maintained by Macrovision.
Easily upgradeable so that the technology is always up to date.
Macrovision Releases CDS-300™ Featuring Windows Media® DRM
Macrovision Protected Music Tracks Surpass 2 Billion