title: Unable to play video in HTML5
body: <p>I just started learning HTML5, I started with normal text file and changed its extension to .html and added the below code. </p>
  
  <pre><code>&lt;!DOCTYPE HTML&gt;
   &lt;html&gt;
   &lt;body&gt;
  
    &lt;video width="320" height="240" controls="controls"&gt;
      &lt;source src="D:\Movies\Troy (2004).avi" type="video/avi" /&gt; 
      Your browser does not support the video tag.
    &lt;/video&gt;
  
   &lt;/body&gt;
   &lt;/html&gt; 
  </code></pre>
  
  <p>I am using FireFox 4.0.</p>