Here is a page where we test various ways to embed flash video files into a web page. If you're interested in a different video format, try one of the pages on the left. The .flv format uses a flash plug in, which almost all browsers have these days. Flash is pretty much becoming the standard. You need a player, which is some kind of .sfw file, and associate that with the flash video, in .flv format. Or, as in the case here, the .flv was compiled in with the .swf to make the embedded video. It's a bit more complex than other options, but works in everything, including IE6.

Here's a video of Angry Hill's amazing guitarist, using a not so unadorned <object> tag.

Summary

Here's the dope:

Opera
<object>: Works fine
<embed>: NA
<video>: NA.
IE6
<object>: Works fine
<embed>: NA
<video>: NA
IE8
<object>: Works fine
<embed>: NA
<video>: NA
Chrome
<object>: Works fine
<embed>: NA
<video>: NA
FireFox
<object>: Works fine
<embed>: NA
<video>: NA
Safari
<object>: Works fine
<embed>: NA
<video>: NA

Summary

<object> works in all browsers, including IE6 and IE8. Probably <embed>: will also work, but I didn't test it. Neither did I test the <video>: tag with flash. In theory it's an inappropriate tag to use with flash.