Official web-site https://www.recoupler.com/products/audiobookconverter

AudioBookConverter

AudioBookConverter was originally designed as simple and lightweigh application to convert set of mp3 files to single m4b (aac) file to be played on your i-device (or any device now) Overtime AudioBookConverter evolved and currently can support converion of most of popular formats to m4b, it also can handle existing m4b files and process them. AudioBookConverter can working smart to find relevant artwork and can do avanced chapter management.

Donate if you have found AudioBookConverter helpful!

Supported source formats:

Main features:

Just download the file from link bellow, no QuickTime or iTunes is required.

Download

Usage:

Just run the program, add files, press convert all other things are optional

Latest fetures of version 4.x are shown here

Short video demonstrating latest features related to chapters support: https://www.youtube.com/watch?v=N7JrujMfids


Read more on Wiki