TunesBank Audible Converter is a perfect Audible AA/AAX converter tool, it can convert Audible AA, AAX books to MP3, M4A, FLAC, WAV, etc. So that you can listen to your Audible book on any popular MP3 player, such as Sony Walkman, iPods, PSP, Zune, Creative Zen , iRiver, etc. Download: https://www.tunesbank.com/audible-converter/
Features: Remove DRM from Audible books; Batch convert Audible AA/AAX to MP3, M4A, AAC and FLAC; Split audiobooks into chapters by time frame, by time or by chapters; Keep audiobook chapter markers and metadata info; 100X faster conversion speed; Convert Audible audiobooks without iTunes and account authorization; Convert Audible books for playing on any devices. Guide: How to Convert AA/AAX Audible books to MP3 https://www.tunesbank.com/audiobook/convert-audible-to-mp3-online.html
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OpenAudible - OpenAudible Project Page
UkeySoft Audible Audiobook Converter - UkeySoft Audible Audiobook Converter is a popular AAX/AA to MP3 converter, it not only can remove DRM from Audible books, but also can convert Audible AA/AAX audiobooks to MP3, M4A, AAC or FLAC with 100% original quality preserved.
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Audiobook Converter - AudioBookConverter simple and lightweigh application to convert set of mp3 files to single m4b file to be played on i-device AudioBookConverter support conversion of most of popular formats to m4b, it also handle existing m4b files and process them.