I'm not into audiobooks but others on the forum are. Albumwrap is almost equivalent to zipping a bunch of mp3's except that it can be played as a single mp3. Of course to separate the individual tracks you need to use the albumwrap extractor. There's a sticky in this section about albumwrap & links. As far as reducing the size of audio books, some senior members of the forum are deep into audio books & have offered lots of advice about it in the Tips & Tricks section of the forum. Search the words audio and book or audiobook & make your search specific to the tips & tricks section. I know your question has been asked before & answered with an experienced audiobook user. Find the search button in blue at top right of page.
Somebody else just asked a question about audiobooks:
http://www.gnutellaforums.com/showth...threadid=27613 Ursula or Kath are the 2 to speak to about audiobooks!
Oh I just realised it was you who asked the question! Doh! Silly me!