I have been using Itunes for a while now, recently when I burn CD's that I own into Itunes (so i can put them on my ipod) for a while the file is available to copy to my ipod and play in itunes But after a couple days or possibly after closing the itunes app, the file is listed in my playlist but has an exclamation mark next to it. when i click on the song to play it in itunes it wont play and an errror message pops up saying- "THE SONG....COULD NOT BE USED BECAUSE THE ORIGINAL FILE COULD NOT BE FOUND. WOULD YOU LIKE TO LOCATE IT?" when i do attempt to locate it, it is no where to be found. what is going on? is itunes deleting files without my knowledge? it only happens with CD's ive purchased and then burn onto my comp? Thanks for any help!