Ogg to WAV,MP2,WMA ,OGG, APE, AAC(used by iTunes),FLAC(lossless compression),MP4,M4A, MPC(MusePack),AC3,TTA,ofr(OptimFROG),SPX(Speex),Ra(Real audio), and WavePack. For those who've purchased music from the iTunes Retailer, you'll have AAC …