The HTML5 <video> Tag
One of the more promising HTML5 tags is the <video>
tag. However, in the short term, it complicates things more than it simplifies them. It is not supported by older browsers. In order to be more certain that your video will play in a variety of browsers and platforms, you must provide a plethora of options. Even then, Flash is not supported by iPad and iPhone.
Basic video tag usage is:
<video controls width=450 height=335> <source src=demo.mp4 type="video/mp4"> </video>
However, this is simplistic. As of this writing, a wide variety of tags and file formats are required to ensure that a video will play. This includes using the object and embed tags.