not sure if this is pertinent to the thread, but sometimes I have an MP3 file that just won't play on Windows Media player, but will on another player, like say ...Irfanview. So it must be a codec issue of some kind. But ...when that happens, I just use a free converter program called "Super" which converts almost anything ...into anything. I just reencode the MP3 as an MP3 and it works...not sure why, but it fixes whatever issue I had on that file.