title: Wordpress media upload extra field
body: <p>How do I make another field available in the wordpress media panel?</p>
  
  <p>Currently you have all your necesary fields, although I need to add one extra to capture some extra details.</p>
  
  <p>I am using a flash player that looks for a set of fields, ideally I would like to a field called <code>video_url</code></p>
  
  <p>Any ideas?</p>