Ma scrivi bene il codice HTML scusa?
Qui sotto ti ho fatto un piccolo esempio funzionante studialo:
codice:
<html>
<head>
<title>No title</title>
<meta name="Pippinu u Curtu" content="Una Provola in HTML">
</head>
<body bgcolor="white" text="black" link="blue" vlink="purple" alink="red">
<object classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715" width="320" height="315">
<param name="FileName" value="http://www.picarelli.com/novas_imagens/sapo_maluco_dj.wmv">
<param name="AutoStart" value="true">
<param name="ShowTracker" value="true">
<param name="ShowControls" value="true">
<param name="ShowGotoBar" value="false">
<param name="ShowDisplay" value="false">
<param name="ShowStatusBar" value="true">
<param name="AutoSize" value="false">
<embed width="320" height="338" src="http://www.picarelli.com/novas_imagens/sapo_maluco_dj.wmv" AutoStart="true" ShowTracker="true" ShowControls="true" ShowGotoBar="false" ShowDisplay="false" ShowStatusBar="true" AutoSize="false" pluginspage="http://www.microsoft.com/windows/windowsmedia/download/"></embed></object></p>
</body>
</html>
E converti il file .AVI in .WMP perchè l'.avi deve scaricarlo tutto prima di eseguirlo, il .wmp lo esegue subito.