<embed src="video.avi" /> or <img dynsrc="video.avi" /> or <object data="video.avi" type="video/avi" />
are a few ways to do it...
Here is the code that will help you to play a video file in your application, i have used that.
<%--The code that can used to play a video file with .wmv extension --%>
<object type="video/x-ms-wmv" data="../Images/amazing.wmv" width="420" height="340">
<param name="url" value="../Images/amazing.wmv"/>
<param name="src" value="../Images/amazing.wmv" />
<param name="autostart" value="true" />
<param name="sound" value="false" />
<param name="controller" value="true" />
</object>
<%--End code to play video file--%>
Change the url according to your file in application.