Mac Audio Book Converter easily converts iTunes audio books (m4b format) to MP3 or AAC format on Mac OS X. Batch convert protected audio books or unprotected audio books to MP3, AAC, AIFF, or WAV files ready for use on any computers or mobile music devices such as iPod, iPhone, iPad, Zune, PSP, XBox, MP4 Players, MP3 Players, Mobile Phones, Pocket PC Devices, and so on. - without any restrictions or DRM protection. Audio Book Converter works with iTunes and virtual CD-RW burning technology to complete the entire burning, ripping, encoding process ALL IN ONE. It converts audio books on your iTunes quickly and with CD-quality. You can run this software as often as you like so if you decide to purchase more audio books from the iTunes store simply run it again to convert the new books.