iMovie Audio Problem - some files won't play while others will.

[cady]

As stated in the title, when working with iMovie, some of my Audio will play while others won't. For instance, the songs New Soul, Running Hell, and 2 Hearts will play while Eye of the Tiger, Never Give Up, and some elevator music won't. As far as I can see, there is no reason this should be happening-totally random.

And for further reference, this is not an audio importing issue, every song is imported just fine. The problem is it won't play when I am viewing the movie.

Thanks,
Cady

Edit: I am using iMovie 3.0.3, and all files are files purchased from iTunes.