Okay, so here's how it goes. My friend loaned me his MacBook Pro while he's on a backpacking trip. I'm taking this opportunity to transfer songs I like from his iTunes to mine. The problem is that he buys most of his music (like a good boy). I have a program that converts m4p files to mp3 (old version of Switch) and tested it on my MacBook Pro first. I successfully converted a song that I bought from the iTMS to mp3 and was able to transfer it to his computer and play it there. Then I tried the same thing with one of his purchased songs but when I played it on my computer, I got the the file and it had the correct length and stuff but I didn't hear anything! I check the file type and whenever I download a song I get a "Purchased AAC audio file" but whenever I buy songs on his computer (I was told to), I get a "Protected AAC audio file!" I don't have iTunes plus by the way. What's going on / how can I transfer his purchased "Protected AAC" files to my MBP without burning a CD? Thanks!