title: Why won't Opera play this <audio> MP3 (but will play this OGG)?
body: <p>The tracks both play fine if accessed directly but only the OGG will play in the <code>&lt;audio&gt;</code> player.</p>
  
  <p><strong>YAY!</strong></p>
  
  <pre><code>&lt;audio controls preload="none"&gt;
  &lt;source src="//www.html5tutorial.info/media/vincent.mp3" type="audio/mpeg"/&gt;
  &lt;/audio&gt;
  </code></pre>
  
  <p><strong>BOO!</strong></p>
  
  <pre><code>&lt;audio controls preload="none"&gt;
  &lt;source src="//www.html5tutorial.info/media/vincent.ogg" type="audio/ogg"/&gt;
  &lt;/audio&gt;
  </code></pre>
  
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