Youtube 買like Explained in Fewer than 140 Characters
http://codygxtm293.theburnward.com/10-things-we-all-hate-about-youtube-guan-kan-ci-shu
You can find a few fundamental video clip file forms online. Mpeg, AVI and Quicktime. I believe the Quicktime file type is the preferred given that many massive leisure and information sites utilize it exclusively