HTML/CSS/Object Attributes/type param
"type": When the "param"s valuetype attribute is a value of ref, the type specifies the content type
<HTML>
<BODY>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase="http://download.macromedia.ru/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0"
width="243"
height="194">
<param name="movie" value="yourfile.swf" valuetype="ref" type="video/*">
<param name="quality" value="high">
</object>
</BODY>
</HTML>