well, I checked my QuickTime and it says that all the files I need, I have. So that's out. I also downloaded a new song and tried to play it in QuickTime. That didn't work either. I also tried to play it in my iTunes. I don't know what is wrong. If you have any more ideas or suggestions, I'm open for anything. However, if nothing works, do you know of any other programs like LimeWire that are free and support Macs? A program that I can download some music off of? Thanks for all your help.