Goodmans GDVD-3500K region-free hack

Open the the player drawer

Press 9 8 1 7 on the Remote

You will now be in the hidden menu where you can change the Region from 1 to 6 by pressing Enter on the Remote. Selecting 9 sets it to Region free

You can also disable Macrovision from this screen

If your TV does not support NTSC, you can also set the output to PAL from this screen