Podrias usar este codigo :
Cita: <object id="MediaPlayer" width="ANCHO" height="ALTO" classid="CLSID:22D6F312-B0F6-11D0-94AB-0080C74C7E95" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsm
p2inf.cab#Version=5,1,52,701" standby="Un segundo por favor ;)" type="application/x-oleobject">
<param name="FileName" value="imagen.avi">
<param name="AutoStart" value="true">
<param name="ShowControls" value="true">
<param name="ShowStatusBar" value="true">
<param name="DisplaySize" value="1">
</object>
o si no podrias usar este otro
Cita: <embed type="application/x-mplayer2" pluginspage="http://www.microsoft.com/Windows/MediaPlayer/"
src="imagen.avi" width="ANCHO" height="ALTO" autostart="1"
ShowStatusBar="1" ShowControls="1" DisplaySize="4">
</embed>