Wonderful All Audio Burner is easy burn CD, burn music CD, burn MP3 CD, burn WMA CD from almost all popular video and audio formats including MPEG, WMV, ASF, AVI, MOV, 3GP, RM, MP4, MP3, MP2, WMA, WAV, AU, M4A, RA, OGG, AAC, AC3, etc. It can convert between many popular audio formats, such as MP3, WAV, WMA, MP4, M4A, MP2, VQF, APE, OGG, AAC and FLAC etc. One of featured function is that Super Audio Converter supports converting m4a to mp3, mp4 to mp3.