I don't think i am explaining it right. My iPod touch is set to manual sync with my PC. I want to now use it on my mac, but I'm scared when i plug it into my new mac that it will erase all of my music. I also was hoping to maybe restore my iPod touch, but before i do that i want to copy the songs onto the mac and also the playlists. the songs are not all mine. so i sharing would not help.