This page demonstrates the use of HTML5 open video – if you're not using a browser that can display either the open Ogg Theora or the patent-encumbered H.264 codec, there's not much to see. Download the Opera dev funky dancing video
<video width=640 height=480 controls> <source src="bruce_henny.ogv" type="video/ogg"> <source src="bruce_henny.mp4" type="video/mp4"> ... </video>