mp3s skipping

[soundtest]

I haven't used a dial-up modem for years, but i know the sound you're talking about. It's similar to that but far more subtle, yet equally as annoying. This problem only occurs when files are played back from this particular hard drive. When the same files are copied to another destination, they play fine. I tried defragmented the drive, but that didn't do any good either. I've got another IDE cable around here somewhere so i'm going to give that a shot.