There are different region codings depending on the location of where you live. NTSC Region 1 is for the US and Canada, Pal is for Europe, etc. There are 6 region codes world-wide. An NTSC region code 0 can also be played anywhere in an NTSC region. South America is NTSC, but not region 1, therefore NTSC 0 code can be played in the US and South America.
Check out Amazon.com, and they have a great explanation on region coding around the world.
Check out Amazon.com, and they have a great explanation on region coding around the world.