The controller is also getting cut off in Safari. You need to give you movie height more pixels then the actual movie height for that.
Seems to have other issues too in Firefox.
Not sure about the code you are using as it is much different then what I use but I never use wmv files. For mpegs this is what I use on a movie that is 384x288.
Code:
<embed align="right" height="310" src="http://cleoslinks.com/blogpics/drum-circle-03-21-08.mp4" type="video/mpeg" width="384" autostart="false" controls="console" autoplay="false" controller="true" cache="true">
The above movie is used in my Blog if you want to see what it looks like in Firefox.
http://cleos-porn-links.com/blog/