DVD-Audio’s CPPM can be got around with a WinDVD patch

When DVD-Video’s encryption had been broken about 6 years back, the next generation of the Audio CD, DVD-Audio had been delayed for several months.  It was originally to use the CSS2 encryption scheme, but the breaking of CSS meant the music industry no longer wanted anything to do with CSS in the new upcoming DVD-Audio format at the time.  As a result, DVD-Audio took on Content Protection for Pre-recorded Media (CPPM), a much more advanced copy-protection system, which includes Key Blocks and watermarking and allows revocation (for compromised devices).

It was
not long ago that DVD-Audio playback software came to the PC.  For example
Creative’s SoundBlaster Audigy 2 comes with a DVD-Audio as well as href="http://www.cdfreaks.com/software/80" target=_new>WinDVD ’s DVD-Audio add-on.  So, rather than try to compromise the DVD-Audio’s encryption itself, someone has succeeded in making a patch that uses WinDVD to perform the decryption and playback, but instead pipes the decrypted audio output to the hard drive instead of the sound card.  The patch which includes several tools requires WinDVD 5, 6 or 7 to work.

Source: Rarewares