Your computer is to fast.
you need to use a slower computer and it will work fine.
Nah, I'm kidding, try another mp3 playing program, if if worse comes to worse, reinstall windows. If I rememeber right, I had that happen once, and I had to reinstall.
Thats what you get for running a 32 bit shell for a 16 bit OS running an 8 bit Kernel.