I have been using an external HD with my old iMac. I now have a new Mac and it's using the same library but I've been having a few weird issues while syncing iPad etc. Plus it still shows up on Apple TV as "27" iMac Library". Since we have to keep so little data in our libraries these days, I was thinking of moving the library onto my new mac. Will I have more problems if I do this? Should I just use Migration Assistannt? Is there a specific support article from Apple on this?