Bad lander, the gopro HD files are HUGE! You need to convert them to MPEG 4 files and compress them in order to upload to YouTube. You also need video editing software to cut your clips down. There is a program called MPEG stream clip from a company called Squared 5, it is free to download and is used by thousands of production houses as well as most TV stations across the country to convert and compress their video files. PM me if you have any questions