The video on the T3i is finicky. First off it's high quality video so you need a high end video card to process the video fast enough or the video cuts out. Then it's a picture camera with a video option so the chip heats up quick using the video and causes the video to cut out after a few minutes. I thought maybe it was a defect in my camera but there are forums full of this info and explanation. So if you're looking for a video camera get a video camera and leave the T3i for pictures.