MP3 Renamer   
by wormware.com   

This program will allow you to view a directory with your mp3's in it and rename them all to a uniform filename of ArtistName - SongTitle.mp3. This is the most common naming scheme, for most mp3 enthusiasts, that I have found. It will pull the naming information from the embedded ID3 tag and removes all other unnecessary/unwanted characters from the filename.