My son currently uses iTunes for Mac to store all his music for his iPhone. He is finding that his Mac will not accept the latest iPhone release because he needs a new OS release and possibly a faster processor. Any way, to make a long story short. He is now thinking of purchasing a PC laptop that will run the latest version of iTunes and upgrade his iPhone. BUT, all of his music is on his Mac PowerBook. Is there way to transfer his music stored on iTunes for Mac to iTunes for Windows?