title: Google Chrome does not want to play mp4 using mediaelement.js
body: <p>I'm using the latest mediaelement.js on my website to play html5 video.
  There is something strange in Google Chrome.
  He plays one video, but doesn't want to play the other video in mp4 format and doesn't  fallback to webm.
  Both videos were converted with ffmpeg with this params:  </p>
  
  <pre><code>ffmpeg -i input.mov -acodec libfaac -ab 96k -vcodec libx264 -vpre slower -vpre main -level 21 -refs 2 -b 345k -bt 345k -threads 0 -s 640x360 output.mp4
  </code></pre>
  
  <p>Besides, the first video plays normally without using mediaelement.js library in mp4 format  and the second one turns into webm format.</p>
  
  <p>Sample pages from <code>http://random.net.ua/video_test/</code>:</p>
  
  <ul>
  <li><code>http://random.net.ua/video_test/video1.html</code> (ok)</li>
  <li><code>http://random.net.ua/video_test/video2.html</code> (ok)</li>
  <li><code>http://random.net.ua/video_test/video1-mediaelement.html</code> (ok)</li>
  <li><code>http://random.net.ua/video_test/video2-mediaelement.html</code> (fail)</li>
  </ul>