I am looking for the simplest way to back up all my video files to an external, to free space on main computer, and to be available for use in iMovie. My videos were imported into iPhoto, so they are lost in the Finder hidden files folders. Even when I "show package" to see the iPhoto Library files, the videos (.mov files) do not show up. (I have to go into iPhoto and individually choose a movie and click Show in Finder.) How do I find and do a simple Copy of all those movies to my external drive? Thanks. ---------- Also, I have not yet upgraded to Mountain Lion (on my MacBook Pro). Would doing so provide a better way to back these things up?