When opening iTunes on my MacBook Ive lost all my films/music etc, although the library is still on my iPhone. So now I can't perform any synch or I'll lose everything off my phone. Is there a way of copying it back from my iPhone to iTunes on my MacBook? I think i may have messed it up when I created a second iTunes account on my MacBook for my wifes iPad. I assumed I could run two iTunes accounts on my macbook by opening iTunes and logging into whichever account I wanted to use?