This hack is accomplished using the remote control that comes with the player.1. Ensure that the player is empty before starting. 2. Open the disc tray. 3. Place a region 1 disc in the tray, but don’t close it. 4. Press the buttons “0”, “1”, “2” and then “3” on your remote control in order, one at a time. 5. Press the “play” button on your remote.If all has gone to plan your Proline should now be able to play disks from and of the 6 regions.This information also applies to the Wharfedale DVD-750, Grundig GDV-200 and Grundig GDV-210 players. 5.