A program the allows you to change the ID3 Tags for any .mp3 file, without re-encoding it. What does this mean? It means that you can change the song, artist, and album names, the date, genre, and comments on any .mp3 file, without spending the time needed to re-encode them, or to download them over again. This is extremely useful if you notice that you have .mp3 files that are mislabeled, or have poor spelling. Simply make the changes you want, click Apply, and your done.