i transferred all my music to my powerbook when i got it. i then proceeded to spend a fair amount of time tidying things up extensively, and adding artwork. since i'm soon going lossless, i decided to move my collection to another machine and share the tunes out using iTune's inbuilt sharing functionality (so neat

). which brings me to my question. i realy dont wanna lose all the artwork i added, so i was wondering how to preserve the artwork when moving the music collection over. i know mp3s have the image embedded in them, well, i think so anyway, but what about m4as?
anyone?