Here's another DVD-Audio promo:
[Link: panasonic.com]

5.1 channels sounds good (imagine sitting in the middle of an orchestra instead of in the audience). Audio options do include DTS.

Dynamic range of 144dB may be too much for many. Doesn't it get painful above 120dB?

Question is, why would an artist/producer opt for DVD-Audio instead of DVD video?

Back to the original question, I'm waiting for a 200 disk DVD changer.