title: Convert filepaths from long to short format
body: <p>I have a folder of many .M3U files each containing a list of file references, e.g.</p>
  
  <pre><code>\Dance\00724347388620-1-1.flac
  \Dance\00724347388620-1-11.flac
  \Dance\00724347388620-1-15.flac
  \Spacers\02480002928928-1-44.flac
  </code></pre>
  
  <p>How can I convert these to short filename format?</p>