Except Mp3FileManager, (and now GYM ) I only store music tracks. I had a lot of CDs before taking a HDD MP3 Unit (first one was an Archos Gmini220) and all are encoded now. Sometimes, I encode at lower bitrate, for old records that don't need to be in high quality (not remasterized old lp's or foreign language training course CDs) but, generally, I'm not under 256kbps. Since I have Shure's Earbuds, I had to re-encode some CD's in higher quality because sound was too bad and it was really disturbing for ears. And my HD5 is near to be full now... (less than 3gigs before reaching the limits). I like having all my CD's collection in my pocket and pick in it according to my mood...