On Tue, Nov 29, 2016 at 12:41 AM, Doug <dmcgarrett@optonline.net> wrote:

I make gross assumptions that audio dvd means you just put audio
formatted files on a DVD of course, so please take with a grain of
salt.

DVD-audio (or DVD-A) is a different beast than DVD-video (the names
should give you a clue about purpose), and vastly different than random
kinds of audio data files that happen to be on a DVD (but could be on
any medium).

DVD-audio was intended as an usurper to compact disc digital audio
(large disc capacity, room for lots of audio, quality-wise, time-wise,
and/or multi-channel).  But it never really took off and DVD-audio is a
rarity, and finding a player for it is even more unusual than finding
the discs.  I've never seen any in a shop, I think it'd all have to be
special order.