I don't know if it was here on another support forum...
But someone was having trouble with one or two albums. They would start, pause, move to next track and then possibly lockup.
After reviewing his situation, he found that wma files were causing the problem. His mp3 files played fine. I don't know much about wma but maybe there is a bit-rate issue if the file it coded too large or data is too "dense" (for want of a better description). I also don't know if the windows' format is protected (drm)