I was ripping some mp3s with my new Mini yesterday when I noticed that it just doesn't want to play a couple of my CDs -- it "chews" on them for a while, but no icon appears, and eventually it spits them out. Now, one of these CDs is scratched and tends to play kind of glitchy on other drives, but it does play on them, or it did once upon a time. The other CD isn't scratched and I've never had trouble with it on other CD drives, though it does look kind of usual in that there's a kind of "empty" band a few millimeters wide toward the outer edge of the disc (just the way it was printed I guess). Does the Mini have an unusually finicky combo drive in it? Should I be concerned that there might be a mechanical problem? I've tried 15 or so other CDs (and DVDs) and they play fine.