20 Trailblazers Leading the Way in Youtube ライブ配信 視聴者数
http://laneizxl634.lucialpiazzale.com/youtube-raibu-pei-xin-shi-ting-zhe-shu-snshelper-explained-in-fewer-than-140-characters
You can find a few basic video file types on the web. Mpeg, AVI and Quicktime. I feel the Quicktime file sort is the most popular since lots of enormous amusement and news sites use it exclusively on their web