Mac Version How to use AA to MP3 Converter with iTunes 12, 11, 10, 9 & 8 Simply download and view how to convert AA to MP3 with AA to MP3 Converter. This guide will show you how to convert protected Audible AA to mp3 file format so that you can enjoy your own Audiobooks on any music player or smart phone. AA to MP3 Converter, which is developed for converting AA to MP3, is the very fast windows application and probably the best AA to MP3 Converter in the world. MP3 files for playing it on all music players?. Which allows you to remove Audible Audiobook encryption, convert protected. When you want to listen to AA files on any player you got, there is a need to download Audible AA format and convert them to MP3 file format. The files in this kind of format come with a Digital Rights Management protection that keeps them from being shared. AA is an audio format applied to Audible.