Hi AlanI, Maybe you are right... I did edit the video in Windows Live Movie Maker, and I saved the video in one particular folder. Then, I did upload it to youtube (but I dont know which settings!) so maybe thats the reason. In the other hand, if you see my other videos which I did not edited, they are in 720p. <iframe width="425" height="349" src="http://www.youtube.com/embed/zYHEqZsPYbM" frameborder="0" allowfullscreen></iframe> I will try to upload it again and I will check the settings, maybe I will found what happened. Thanks a lot!