Audio Format Switch - Version 2.4 Audio Format Switch provides an easy and completed way to convert to most of the popular audio formats. With Audio Format Switch users can batch convert music to 6 major audio formats: Wave, MP3, MP4, AAC, WMA, Ogg Vorbis. Allmost all important audio formats are accepted as conversion input: audio CD tracks, MP3, WAV, AIFF, OGG Vorbis, MP4 (audio frames only), AAC, M4A, AC3, FLAC, WavPack, ALAC, MOD, audio frames of ASF and WMV files, other compressed formats like ADPCM, GSM 6.10, Speex and other.Product supports AAC MP4 file type - probable inheritor of MP3 due to its crisp, rich, clean audio quality rivaling that of uncompressed CD audio. AAC also has much more efficient compression resulting in smaller file size and very fast encoding. AAC Mp4 audio format is supported by major hardware and software products like iPod and iTunes. Audio Format Switch is very easy to use. Just add the files you want to convert to the list, conveniently listen audio preview of the selected file, select the format you want to use, and then click the convert