Repairing Corrupted Audio Files
CJ gives you a quick run down on what he did to get his corrupted audio files back from the dead after they did not save correctly.
Audacity - http://audacity.sourceforge.net/about/
This is an alternative free sound recording/editing application for those who don't have Adobe Audition.
Sorry I didn't remove mic noise and I have no idea why I brought up the AVI file at the very end with nothing to really say about it.