hi
http://mac.sourceforge.net/atl/
AAC - for manipulating with AAC file information
AC3 - for manipulating with AC3 file information
APE Tag - for manipulating with APE Tags
CDDA Track - for getting information for CDDA track
DTS - for manipulating with DTS file information
FLAC - for manipulating with FLAC file information
fpl - reads foobar2000 playlist files (*.fpl)
ID3v1 - for manipulating with ID3v1 tags
ID3v2 - for manipulating with ID3v2 tags
Monkey - for manipulating with Monkey's Audio file information
MPEG Audio - for manipulating with MPEG audio file information
Musepack - for manipulating with Musepack file information
Ogg Vorbis - for manipulating with Ogg Vorbis file information
OptimFROG - for manipulating with OptimFROG file information
Speex - for manipulating with Speex file information
TTA - for manipulating with TTA file information
TwinVQ - for extracting information from TwinVQ file header
Vorbis Comment - for manipulating with Vorbis Comments
WAV - for manipulating with WAV files
WavPack - for manipulating with WAVPack Files
WMAfile - for extracting information from WMA file header