M4b 

Enjoy the easy way to rip, convert, burn and play with this digital music software for Mac OS X. Music Man includes all the features you need from a MP3, WMA, WAV, M4A, Ogg Vorbis Converter, Ripper, Burner, Player. Rip from Audio CD. Convert most......

FairStars Audio Converter is a media file conversion tool to convert WAV, RealMedia(RM, RA, RAM, RMJ, RMVB), AIF, AIFF, AIFC, AU, Creative VOC, PVF, PAF, SVX, IFF, APE, FLAC, OGG, VQF, MP1, MP2, MP3, MP4, M4A, M4B, AAC, AMR, AWB, WMA, WMV, ASF to the......

 M4b