Apparently the Samsung S224 hack works on Region-2 versions of this machine. However, the Region-1 version of the DVDR120 doesn`t respond to the same hack. I tried all the different variants of it and none of them worked. No matter what I do, the machine just changes channels when I start entering code numbers.
Besides the region limitation, the American version also has MPEG-4 (Divx) disabled, so it really would be nice to free it up. The firmware version shown on the language screen of my Region-1 unit is TS01. Any ideas?