I received your files, but unfortunately, cannot replicate the problem with them. Perhaps it's related to the WMA files that are also contained within the Library?
Can you (or Aprzybylo) please create a jing video of this, while generating a debug log with dbgview
? (try to show dbgview window in the Jing video to help us match up the log to the video).
There have been a few reports of this here and there, and I'm eager to get to the bottom of this.