title: This file can not be opened as a file descriptor; it is probably compressed
body: <p>I get the error:</p>
  
  <pre><code>This file can not be opened as a file descriptor; it is probably compressed
  </code></pre>
  
  <p>After some googling it appears that I need to add an extension to my file, such as .mp3, the only problem is, my file is already an mp3.</p>
  
  <p>Any ideas how I can make this work?</p>