store multiple h264 versions for every video Pretty much every video content provider I know does this. I work primarily on OTT Boxes (Roku, Boxee) and Connect

store multiple h264 versions for every video Pretty much every video content provider I know does this. I work primarily on OTT Boxes (Roku, Boxee) and Connected TVs and all of those platforms support bitrate selection of video assets based on a speed tests. I'd assume most platforms doing progressive download of video over HTTP does the same.