No specific info about version 1.8. Please visit the main page of Audio Book on Mac Informer.
This app helps you convert videos and songs to multiple audio formats.
Catalog your book collection directly from your Mac.
It can convert any audio book files on iTunes to MP3, WAV and AAC.
AudioBook to MP3 Converter is a powerful AudioBook Converter.
Audio Book Transformer makes use of a Virtual CD-RW to automate.