The Currys website carries details of the Multiregion Hack for Matsui DVD 225:
Turn unit on.
Open the Disc Tray.
On the remote control type 349734.
Press the number of the Region you require, 0 to 6. (0 = All Regions)
The unit will now play multi-region DVDs.
If the unit is reset or the power left off for a prolonged period of time it might default back to Region 2. Simply repeat above to regain Multi Region capability.
Gary, February 2006
