OhMyGawd!!!
It all comes back to me now. When I first played that demo disc in my '04 TL I was impressed. So I visited several music stores in search of DVD-Audio. Zip. Nada. Nuttin'. And so I forgot about it.
This morning I located the DVD in the garage and went through the demo and then started playing the music. My opening statement says it all.
Some coworkers are stopping over a bit later to check out the Oppo on my SXRD 60" Sony. When they hear this DVD-Audio disc they are not going to want to leave.
I have to forget everything else and go listen some more...and then find more of these discs...