I could have sworn at one point it was possible to download audible books using the m4b format as I even have some older audiobooks in the m4b format (I could be mistaken on what program I used for those older books.)
Is there some option I am not seeing to save in m4b instead of m4a as a lot of audiobook readers ignore the chapter data in m4a format. I know I can manually change the extension from m4a to m4b and that works, it is just annoying extra steps.
