title: Medias not showing in wordpress backoffice
body: <p>can someone help me please ?</p>
  
  <p>I imported some medias from another wordpress site using WP-importer
  The image files are present in wp-content/uploads/2014/09 but in the wordpress media library nothing shows up.</p>
  
  <p>I dont know how does wordpress handle images? is there a table in DB ?</p>
  
  <p>I am using wordpress 4.0</p>
  
  <p>Thanks a lot for any idea !</p>