title: Convert base64 Video file in Windows Phone
body: <p>How to convert base64 video in Windows Phone,</p>
  
  <p>I have base64 string :</p>
  
  <pre><code>string str = "aqtuphnzx+rnmhjqipo";
  </code></pre>
  
  <p>How do I convert?</p>
  
  <p>Thanx!!</p>