With AACoder Plus users can batch convert music between 5 major audio formats. Product supports AAC Mp4 file type - probable inheritor of Mp3 due to its crisp, lossless CD audio quality, smaller file size and very fast encoding. AAC is supported by major hardware and software products like iPod and iTunes. Software performs fast automated conversions due to lack of intermediary files.Supported formats are: Wave, Mp3, Mp4 (AAC), WMA, Ogg Vorbis.