Converting Ipod Audio file to MP3

I currently purchased an audiobook from Itunes (version 7.0.2) and I want to convert it into MP3 format so that I can listen on other devices. Does anyone know of a program (preferably free) that will be able to assist me in doing this? I found a couple on the internet, but I wasn't sure if they worked with Itunes Version 7.0.2.

Any help would be greatly appreciated.

 

You have to record it to mp3 because the book is protected. Try this:
http://www.bigbruin.com/forum/about1255.html