Having read a bunch of threads here and other places about the video quality of the Panasonic RP-91, I'm starting to think about ebaying my Pioneer Elite DV-37 and buying one. I've heard the RP-91 represents a nice step up in video quality from the DV-37. What I'd like to know is how the audio quality of the RP-91 will compare to the DV-37 (for both CD playback and home theater sound/surround effects from movie soundtracks). I'm really like to hear comments from those of you that have seen and heard both of these players. How much better/worse will the audio be from the RP-91? Thanks!