I have what I would consider a pretty good sound system hooked up to my home theater. Without going into all the specifics, my video components (SAT tuner, DVDplayer) are hooked via optical audio cable to a Sony AV receiver which I am quite happy with. Recently I swapped out mt Sony DVD player for a Zenith DVB-318 1080i output DVD player. I don't have the Sony model# in front of me now, but it's a progressive scan which I bought about 1-1/2 years ago. At the time is was one of the top of the line single disc players that Sony had out. Maybe it's my imagination, but the sound from the Zenith doesn't quite seem as good as the Sony was. Does the DVD player itself have anything to do with the final sound quality after it is sent and decoded in the AV receiver? Ant thoughts?