Minato DVD-G1
Method 1 of 2
Open Tray.
Enter 0 1 1 1 from remote pad (appears as stars).
Then area code (1 or 2 or 3 or 4 etc) appears as the number.
close tray
Method 2 of 2
Press the Open/Close button on the Remote Control to open the drive tray
Press the buttons 0 1 1 and then 1 on your remote control, in order, one at at time
A number of stars should appear in the top left hand corner of the onscreen display
Press the button 1 on your Remote Control to select Region 1, or 2 to select Region 2, and so on...
The word Region and then the number you selected should briefly appear on screen to confirm that the hack has been successful, however this may not be the case on some models
Note:- This hack may not work on machines with up to date firmware, although if it doesn't display the stars it doesn't necessary mean it hasn't worked.