What are PCM and Bitstream? Also, I juse got a Denon 3803 (love it so far) but, while the manual does a good job of explaining how to do everything, it lacks definitions for some things (hence above question). My specific question is why does it's display always have "Multi" lit up? What does that mean? Maybe we should start a Denon 3803 "Support" Thread! Would that go against the mods wants?