This DVD player is supposed to play DVDs from any Region. However, the unit I received would play Region 3 DVDs, but it would not play Region 1 (USA) DVDs, and I got an "incompatible" message on the screen every time I tried to play a Region 1 DVD. (I could play these DVDs with a regular USA DVD player.) I did follow the manual and use the Power/FF buttons to get the NTSC setting, but it still would not work with Region 1 DVDs.
After I returned the unit, I did some research and found out from the official Pioneer website that Pioneer does not make or sell multi-region DVD players anywhere in the world due to copyright laws. Hacking the units to make them multi-region would void the manufacturer's warranty. I guess it would be true with other manufacturers too. So the obvious conclusion is that all these multi-region DVD players were hacked by the sellers, therefore do not carry the manufacturer's warranty anymore, and whether or not the unit you receive works fine all depends if you are lucky enough to get a unit that was hacked correctly.