I have a friend who got an ipod for a gift. he doesnt have a mac so one of his other friends used his mac to upload some songs on it. now he has a new windows laptop and he wants that to upload music to his ipod, but doesnt want to lose the songs currently loaded on the ipod. Does he need to manually use a mac to get the songs he wants to keep then reset his ipod? or can he just drop it into itunes windows?