right now I've got a few .mp4's hosted on Amazon S3. I know that S3 has support for RTMP, which is useful for streaming Flash. I'd like to accomplish something similar with html5 video; my biggest issue is that I need the ability to seek (fast forward) to a particular part of the video. Right now when I query the video, it loads the entire video before playing, which is a waste of bandwidth/dealbreaker. In what manner could this be implemented? Is this even possible? Looks like RTSP would be a good bet, but I haven't found whether anyone has rolled this out successfully.