title: HTML5 video problem
body: <p>i wonder what i'm doing wrong?</p>
  
  <pre><code>&lt;video id="movie" width="320" height="240" preload controls&gt;
    &lt;source src="pr6.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' /&gt;
    &lt;source src="pr6.webm" type='video/webm; codecs="vp8, vorbis"' /&gt;
    &lt;source src="pr6.ogv" type='video/ogg; codecs="theora, vorbis"' /&gt;
  &lt;/video&gt;
  </code></pre>
  
  <p>this peace of code lies in my index.html. in the same directory i got all 3 videofiles (mp4, webm, ogv)</p>
  
  <p>Somehow the video component shows up, however no video gets played. A big X shows up inside of the video component.</p>