title: Converting every .flac files in a folder into 320kbps .mp3 without losing metadata
body: <p>I'm trying to convert every .flac files in a folder into 320kbps .mp3 without losing metadata</p>
  
  <p>I tried this: </p>
  
  <pre><code>ffmpeg -i *.flac -ab 320k -map_metadata 0 -id3v2_version 3 *.mp3
  </code></pre>
  
  <p>but it returns: <code>*.flac: Invalid argument</code></p>
  
  <p>What I would like to do is to convert every flac files into 320kbps mp3 without losing metadata</p>
  
  <p>Thanks.</p>