Well, I decided to rip some of my music collection into high quality 256kbit (constant bit rate, stereo encoding) MP3s, and burn them onto a CD. I used LAME 3.88 (latest official beta release) as the encoder. Plays back fine with Sonique 1.90 and Windows Media Player on my PC. I used EAC as my CD ripper to eliminate CD errors. Now, playback on the Panny RP91 is horrible...playback exhibits skips and distortion, like a broken record! The CD-RW plays fine on my PC, and works on the Panny because I tested previous burns with it. Playing 192Kbit mp3s encoded by Blade seem to work fine, so I suspect it has the same problem that other primitive mp3 players have with high bitrates (take a look at http://www.r3mix.net ). Can anyone with an RP91 confirm that this is a problem? I have a bad feeling that its mp3 decoder is horribly buggy. I certainly hope there is an easy fix for this...otherwise I'll just send the player back and build a (reliable) HTPC instead!