FRAPS spits out garbage files for me.
I was gonna use this shareware program I found, but in trying to use it, I found out that my Sigmatel onboard audio... even though Stereo Mix is visible, it doesn't work.
EDIT: I got my Stereo Mix to work, and if you happen to have a Gateway lappy with Sigmatel audio, I can send you drivers to make it work. I also found out that FRAPS isn't spitting out garbage... Just no media player can view the stream. So after I record a few of mine and convert 'em, I'll upload 'em to YouTube and post the links here.