Hey all. I have the Macbook Pro 13" 2009 9400m model. I've filmed an event with two cameras, one on tripod for wideview and one for handheld, and when I try to have two videos running at the same time so that I can combine it (multi-angle) it's very choppy. It worked fine with Macbook from 2007, but why not on the Macbook Pro? Is there like a specific procedure that I have to go through in order to make this work?