Here is a test video page
There are lots of ways to add video to a web page. All videos require a video file, a player interface and the right codec and player type must be installed on the users client device.
The easiest way to add video is to let a Video service like YouTube take the strain.....
Adding HTML 5 Video
Please be cautious with codecs and video file formats - check browser support!
Using mutliple video source files
HTML 5 supports the ability to use multiple video source files, like this.