My USB drive quit working as well. I had it plugged into 2 USB ports in the back of the machine, but I moved my machine and accidentally disconnected the ports (the drive was caught on the edge of the desk and pulled the plugs out when I moved the computer). now my USB drive is no longer being recognized by windows. I even tried it on my wife's computer and nothing. there was a post here somewhere about using the "remove USB device safely" somewhere and I think that's probably what happened to mine.

I called PG music and they graciously offered a replacement, sent an email with directions on how to send it back and now I've sent it back and am patiently waiting on the replacement. PG music customer service is top notch!