Mp3tag - the universal Tag Editor (ID3v2, MP4, OGG, FLAC, ...)
Mpeg Layer 3 (mp3) MPEG-4 (mp4 / m4a / m4b / iTunes compatible) Musepack (mpc) Ogg Vorbis (ogg) IETF Opus (opus) OptimFROG (ofr) OptimFROG DualStream (ofs) Speex (spx) Tom's Audio Kompressor (tak) True Audio (tta) Windows Media Audio (wma) ......