I recently purchased a 750GB USB hard drive to install in my truck to hold my music. I went and copied a bunch of my CD's than tried it today and of course no luck. The display read something about it doesn't support that format. I used Window's Media Player to rip the music to the drive. I than tried to rip another CD to the drive by changinf the format to mp3 on the rip settings. Tried and still doesn't work. Anybody have any idea's?