Ok, because I'm in Australia, I don't have the iTunes Music Store. However, I do have access to Audible (Audible.com, not the iTunes Music Store version). I have a few questions. 1. What format is music bought from Audible downloaded in? I heard it's .AA, but I'm not sure. 2. Will content (.AA) bought from the Audible web-site, play in iTunes? 3. Will content (.AA) bought from the Audible web-site, play on an iPod? I'm planning to get a U2 iPod. 4. Which Audible "types" are compatible with iTunes and iPods? I think it's types 2, 3 and 4, but I'm not sure about this either.