Sometimes when I download a track it appears to d/l just fine, but the song will intermittently switch back and forth from normal playback and a high pitched screeching sound, like the download got corrupted somehow. This happens both with Windows Media Player and through my CD player (if I burn it).
Curiously enough this has never happened with EMusic.com, which is a subscription download service I also use. It seems to be specific to Kazaa.
Anyone else ever come across this?