I took it apart, and it appears to be none of the above. At first it looked like it could be the crimping on the IDE cable, but no luck. The unit sat for a few months while I had my stuff in storage between spring and fall semester, but the box was clearly not dropped or mishandled (it worked last time it was plugged in). If the hard drive is, in fact, damaged, any chance that my music may be salvageable?