Now is idisk simply a back-up to whats on my MAC or is it a way to store and not be on my MAC? I tried to put some short vids on idisk and it seemed a little hard to do and once on the idisk, if I erased them from the MAC then they are gone off of idisk as well. I guess I don't understand what idisk is for. Now say I want to download whatever from the www and I want to put it on idisk, should I down load to idisk direct or to my MAC first and then move it? Also if it is on idisk, does it also have to be on MAC also? I am confused!! Thanks for the help!!