MP3TagEditor

From MP3Developments:

MP3TagEditor is an intuitive audio utility that helps you to manage your mp3. By means of MP3TagEditor you can easily edit ID3 tags, create mp3 filenames and mp3 directories from ID3 tag, retrieve album information using FreeDB function. Possibility of playlist and report creation and much more. For example, you can create any template for new filenames using information from ID3 tags (number, name, artist, album, year, etc.) and also rename either single ID3 tag or your entire musical collection. Friendly, easy-to-use interface makes your work with MP3TagEditor enjoyable and efficient. MP3TagEditor is for those who deal with mp3 files and want to keep their musical collection in order.