m4b tool

[Jim]

Tonight I got hold of some audiobooks.  The problem was that each entire 
audiobook is in the m4b format.  Seeing as how I won't listen to the 
whole book for several hours straight, I wanted them in smaller chunks, 
say one file for each chapter.   I found a script that does this 
nicely.  The instructions are simple enough that I had no trouble using 
it.  It's called m4b tool.  I'll pass it along in the event somoene else 
on the list finds it useful.

https://github.com/sandreas/m4b-tool/releases