When I got my iPod Touch, I was forced to sync it to an old Gateway computer running XP, since all of the music I needed to put on was on there. Now, the computer is breaking down and has very little space left (I had to transfer all the videos to the MacBook and delete them just to have 4 GB left). I really need to switch it to my MacBook. Is it possible to switch my iPod to a Mac operating system when it was originally used with a Windows computer? It syncs manually instead of automatically, so does that mean I won't be losing any content?