it doesn't happen all the time, and it hadn't happened for a while so i forgot about it. Last night I popped in this sample cd and the drive immediately started to rattle really loudly. I stopped the drive, took out the cd and started the drive again with the same cd and the rattling continued. Is this a serious problem? Once again, it hasn't happened for the longest while. The drive came w/ my compaq 7000 series.