seeking tagging app for incomplete music files

I ran Data Rescue II on a customer's iPod to recover files which have been accidentally erased and I'm running into some trouble with tags. Most of the music was recovered but half of them have no metadata and are named stuff like AWRG.mp3. They work, the music is there but I have no idea what they are. The hard drive was failing as well so not everything was recovered due to that subsequent issue.

I could swear there's some software for Windows that can do this although I can't think of it off the top of my head. I looked into Musicbrainz software (http://musicbrainz.org/) and am trying some of those although more recommendations would be appreciated.


Thanx,


-Ani