This is just my humble opinion, but I stick with what I said in that it's a hardware fault.
However, I'm running the most current version available from SVN. Try updating to the latest version, since if the problem is no longer there, then it has already been fixed.
Also, what is the behaviour of the player when this happens? Is it still responsive?
The track you uploaded has just started playing for the 3rd time and I haven't heard a single glitch. However, I'm using a Clip+...
(My apologies in that I misread the post and thought you had a Clip+)