I downloaded a Mario & Luigi: Paper Jam soundtrack, but when I play it in iTunes, the music gets various garbled distortions in it. I have Audacity and Foobar, but I'm not sure what I need to do to make these songs play correctly in iTunes. Any help would be very much appreciated. I also hope I posted this in the correct forum! If not, I am very sorry!

Itunes tends to have Problems with Music that has unusual Sample Rates...

Let me guess, 32000 Hz ?

That was the issue! I needed to change the sampling rate to 41000 HZ.

Glad to have helped ;)