I have noticed that Nero has the availability to burn in a DVD-Audio format using AAC or the Nero Digital Format, but why are these formats only supported? Is it not possible to burn a DVD-Audio in MP3 or WMA (or is this the same thing as a MP3 DVD Disc)? And what is a DVD-Audio disc? I have noticed that these DVD-A discs work by disc capacity and not by time restraints (such as the Audio CD, which holds 80 minutes, while an MP3 CD can hold 6 hours). Is a DVD-A disc burned like a Data disc or as an Audio disc? I have heard from some people that DVD-Audio discs function exactly like an Audio CD, holding 80 minutes of music, but burned at an even larger compression rate. Is this true?