Why You're Failing at Youtube 留言
http://andredfsq315.yousher.com/enough-already-15-things-about-youtube-liu-yan-we-re-tired-of-hearing
You'll find a few basic video clip file sorts on the net. Mpeg, AVI and Quicktime. I think the Quicktime file form is the preferred due to the fact lots of huge entertainment and information sites utilize it exclusively