Mp3tag is a powerful and easy-to-use tool to edit metadata of audio files.
It supports batch tag-editing of ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE Tags for multiple files at once covering a variety of audio formats.
(Mp3tag permet d'éditer les informations contenues dans les fichiers audio compressés aux formats AAC, OGG, Flac, APE, MP3, MP4, M4A, WMA)
http://www.mp3tag.de/en/index.html