All, if you're like me you tend to accumulate lots of obsolete WAV files as you record takes and then discard them from your multitrack view. AA does not delete these files even if you use the Close Unused Media option...they hang around, complete with their unwieldy file names, eating up disk space.
This was really bugging me so I wrote a little freeware utility to handle it. All it does is detect which files are actually being used in your current multitrack session (actually, which files are open in your Files window) and then give you the option to relocate or permanently erase the rest. The utility can be run from the Favorites menu. At present it only supports AA 2.0.
I've now made this thing a part of my working environment and I use it all the time, since my main machine is a laptop and disk space is always at a premium. Some people on Adobe's official Audition forum have vetted it fairly well too. If you want to try it, the download site is here:
http://www.edwardhamlin.com/afc_download.shtml
Please also download the manual I've posted, as it contains some important caveats and tips.
This is still a work in progress, so suggestions always welcome. Hope you find it helpful.