Goodmans GDVD-131 region-free hack

Press the Setup button on the Remote Control

Press Vol+, Vol-, Vol+, Vol-

The onscreen display should show "VER #" indicating the currently Region setting

Using the Left and Right cursor keys, change the Region code to 1 for Region 1, 2 for Region 2, and so on, or set it to 255 for multi-Region playback

Press Setup