One of the biggest issues with Audible users is that they can only listen to the purchased audiobooks on the devices supported by Audible. Though Audible supports a wide range of portable devices, there are still some popular devices such as Sony Walkman can't open Audible AA/AAX files. For the people who want to enjoy Audible audiobooks on old MP3 player or other devices, this problem will be quite frustrating.

But, this doesn't mean that you can't listen to Audible audiobooks on these non-supported devices. You just need to remove the DRM protection from Audible audiobooks so that you can transfer Audible audiobooks to any devices you want. One of the best DRM audiobooks converter - Apple Music Converter, which is specially developed to get rid of DRM lock from Audible AA/AAX audiobooks as well as iTunes audiobooks while converting the AA/AAX file to MP3 or other format at 16X faster speed with the original ID3 tags and chapter info fully preserved in CD quality.

Step 1. O
pen the latest iTunes and go to Books > Audiobook section. Then import the AA/AAX files to iTunes library via click "File" > "Library" > "Import Playlist".
Step 2. Run Apple Music Converter on your computer. And go to the Audiobooks Playlist and tick the audiobooks you want to convert.
Step 3. Just choose MP3 or M4A format from the drop-down list because they can keep the chapter information after conversion.
Step 4. Hit the "Convert" button to begin removing DRM and converting Audible audiobooks to MP3 or M4A format with chapter preserved.

Complete Guide: Remove DRM from Audible