1... As Jeffreybehr says, you don't require a video screen to play a DVDA. You do need it for setup. The solution is to go out and buy a little (13") cheap ($89) TV and put it in your equipment rack.
2...I think the "snippet" problem is the disc. I have not had this problem with any of several players and many discs. However, with the Denon 2900, some discs start themselves when the drawer closes, and others require me to push PLAY.
3...There are no multiple layers on a DVDA. I think that the DVDA protocol creates a stereo program by real time (in the player) mixdown of the multichannel program, although there is also provision for a stereo-only program with higher (196 vs 96) sample rate. (I have no stereo-only discs). All stereo programs (CD, LP, etc) are made by mixdown from many (24 or so) tracks, so the idea of making the final mix in the player seems OK to me. I think that coefficients for this mixdown are encoded on the disc and used by the player. Also, the multichannel playback involves coefficients that can be used to provide different "perspectives"...close up (called "stage") and distant (called "audience").
I have good and bad (audiowise) recordings, SACD, DVDA, CD, and LP. My best DVDA are superior to the best SACD and CD. (You can draw your own opinion of LP).
And the video material, interviews and program notes, are sometimes interesting (even on my little 13" monitor).