Tune4Mac Audio Converter for Mac is a powerful converter to convert any audio books which could be played on iTunes. The conversion is 5X speed fast, and output could be CD Quality. It's also a .aa converter, audio book to MP3 converter. It converts any Audio Book from iTunes on MAC OS X to MP3 or AAC files. Converts purchased AA to MP3 or AAC files. Batch converts DRM protected or unprotected audio books to unprotected MP3 or AAC files with ID tags preserved.