have you tried realplayer's conversion software? it's free. just download realplayer, then play your clip in realplayer, hover over clip being played and options appear on bottom edge of clip far right option is "convert" click it and another window appears for conversion....you can choose many different formats to convert it to. just a thought, since it's a free download.
I had to put load first on my computer cuz I was not able to load on from my phone, xhamster won't accept my phone's format. So I had to load to PC then record to my iPad and that is the only way xhamster would accept, get it?
Really, why filming a video that is playing on your computer???