Samsung DVD-907 region-free hack

Insert a region 1 DVD. The player will then attempt to load it. The tray should then open itself up and the display should read 'NO DISC'. Press the following: DVD/TV, TIME SEARCH, 1, 1, and 9. Load up your region 1 disc. If it doesn't load, repeat the hack with the key press changed to DVD/TV, TIME SEARCH, 2 0 0. The DVD player should now be multi-region. To change your player back repeat the hack except using a region 2 disc.

Taken From: DVD Player Handset Hacks List (Region 2)