What format is the song file? .mp3?
Have you scanned it for virii? (although it may seem irrelevant for the question at hand, try it nonetheless)
Try fast forwarding the song to see if the rip was bad or corrupted and the song actually starts a little later.

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-