The files are huge especially if your using the 1080 setting at 30 fps. I changed mine to be 720/60, but didn't like the video that much. I put it back. I am doing the same thing. Grabbing the section of video I want and getting rid of the rest. I post them to youtube after that. I have only done one so far. If you want to check it out it's at http://www.youtube.com/watch?v=pDFhdAnK2o4 Nothing special, but it's a fun trail at Harold Parker State Forest. This vid is in 720/60 and youtube said it was fixing the shakyness but it didn't it made it worse.