io ho sempre usato questo codice:

<object id="Player" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"

type="application/x-oleobject" height="260" standby="Loading Windows Media Player Components..." width="320"

classid="CLSID:22D6F312-B0F6-11D0-94AB-0080C74C7E95">
<param name="AudioStream" value="-1">
<param name="AutoSize" value="0">
<param name="AutoStart" value="-1">
<param name="AnimationAtStart" value="-1">
<param name="AllowScan" value="-1">
<param name="AllowChangeDisplaySize" value="-1">
<param name="AutoRewind" value="-1">
<param name="Balance" value="0">
<param name="BaseURL" VALUE>
<param name="BufferingTime" value="5">
<param name="CaptioningID" VALUE>
<param name="ClickToPlay" value="-1">
<param name="CursorType" value="0">
<param name="CurrentPosition" value="0">
<param name="CurrentMarker" value="0">
<param name="DefaultFrame" VALUE>
<param name="DisplayBackColor" value="0">
<param name="DisplayForeColor" value="16777215">
<param name="DisplayMode" value="0">
<param name="DisplaySize" value="4">
<param name="Enabled" value="-1">
<param name="EnableContextMenu" value="0">
<param name="EnablePositionControls" value="-1">
<param name="EnableFullScreenControls" value="0">
<param name="EnableTracker" value="-1">
<param name="Filename" value="http://www.nomesito/nomefile.mpeg">
<param name="InvokeURLs" value="-1">
<param name="Language" value="-1">
<param name="Mute" value="1">
<param name="PlayCount" value="1">
<param name="PreviewMode" value="0">
<param name="Rate" value="1">
<param name="SAMILang" VALUE>
<param name="SAMIStyle" VALUE>
<param name="SAMIFileName" VALUE>
<param name="SelectionStart" value="-1">
<param name="SelectionEnd" value="12.9999999">
<param name="SendOpenStateChangeEvents" value="-1">
<param name="SendErrorEvents" value="-1">
<param name="SendErrorEvents" value="-1">
<param name="SendKeyboardEvents" value="0">
<param name="SendMouseClickEvents" value="0">
<param name="SendMouseMoveEvents" value="0">
<param name="SendPlayStateChangeEvents" value="-1">
<param name="ShowCaptioning" value="0">
<param name="ShowControls" value="-1">
<param name="ShowAudioControls" value="0">
<param name="ShowDisplay" value="0">
<param name="ShowGotoBar" value="0">
<param name="ShowPositionControls" value="-1">
<param name="ShowStatusBar" value="0">
<param name="ShowTracker" value="-1">
<param name="TransparentAtStart" value="0">
<param name="VideoBorderWidth" value="0">
<param name="VideoBorderColor" value="0">
<param name="VideoBorder3D" value="0">
<param name="Volume" value="-600">
<param name="WindowlessVideo" value="0">
</object>
ovviamente e' configurabile per la durata del filmato per l'audio ecc.
spero di esserti stato di aiuto
Mirko