Hi: I hope I am not covering old list ground/ I have nearly 3000 titles in my iTunes library, all loaded by various iTunes versions. Is there any downside in batch converting these to AAC. I know there will be space saving and perhaps better quality from my Soundsticks set up. Some advice on the best way of handling conversion will be appreciated. I'm on Digest. Milner Erlank Home: iMac600SE with itTunes 4.01 and Harman/Kardon Soundsticks email: merlank at mac.com