Plus, I don't have Time Machine. What I want to do is every time I create a new Event in iPhoto, say my daughter's birthday party pictures this Saturday, I also want to copy those from my iMac, but also to my external drive. (I don't want to have to clone the entire drive each time I create a single event. I don't even know how to clone - remember, I am a newbie on this stuff). I thought dragging that Event into the external drive would accomplish that, but obviously it didn't. So for each of the Events on my iMac, how do I get the RAW data to the external drive? Thanks for your help.