For the record... this is day 1 with my new MacBook and have JUST started playing with iMovie. I have a video from my recent vacation that I have been playing with and have been selecting segments from it for my video. But when I try to play what I have already picked, it in the upper right video box, it doesn't play. Will it play your edited segments? Thanks for being patient with me already I haven't used Mac in a while and LOVE my new MacBook already!!!