Quality:
Dvd audio is 24 bit (opposed to 16 bit cd) and provides better sound in some peoples opinion then cd.
Also it's sampled at 48Hz (opposed to 44Hz on cd).
Ripping:
In trying to rip the audio I used Dvd audio extractor, but I believe it's only extracting 16 bit, 48Hz, ac3 files. Which I believe sound better then regular cd, but I understand this is not the real high resolution DVD-audio. The audio is self is encrpted with CPPM. Is there anyway to actually rip the real dvd audio tracks at full resolution and then compress them (to ALAC, FLAC, APE or WMA lossless)??
Any clearification would be helpful.