Absolute Audio Converter supports all audio formats you can find, including some rare ones: MP3, WMA, WAV, AAC, AC3, M4A, MP2, FLAC, RA, MPC, RIFF, RAW, TTA, VOX, GSM... The compatibility issue will not bother you any more and you can enjoy the music anytime or anywhere you want with all media player applications like WMP/WinAmp/RealPlayer or devices like iPod/iPhone/PSP.