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I'm setting up an educational lab which is going to have a number of cameras positioned around the room. Ideally, there would be one button somewhere which we could press to automatically start all the cameras, and when we pressed the stop button, all the cameras would send their video to a computer in the room. What would be the best setup for this? I don't want to have to walk around and press record on five cameras, then walk around and press stop, then attach 5 USB cables, then remove 5 USB cables, etc.

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Are you expecting all the cameras to be in sync too? If so what sort of gen-lock like system did you have in mind? –  filzilla May 15 '12 at 21:24
Well, that would be cool, but not necessary. They just need to start at approximately the same time. –  ian93 May 16 '12 at 12:46

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