How To Upload videos?

To post video to website, first thing is to choose a good video format. You can choose FLV ( Flash video ) for the internet. For it can be viewable on most Operating Systems and Web Browsers via the widely used plugin Adobe Flash Player.
To generate FLV video, the quickest way is to use FLV encoder. Free and good one you can use is Moyea Video4Web Converter - http://www.playerdiy.com/downloads/converter/
It can convert almost all video to FLV so that you can use it to generate avi, wmv and other videos to FLV.
To add FLV video to website, you also need a Web FLV player. On this point, you can check playerdiy.com - http://www.playerdiy.com/
It can quickly create custom Flash video player with fullscreen and playlist for website. This is tutorial - http://www.playerdiy.com/support/tutorial/customize-flash-video-player.html