Broadcast Television Regions
There are six (6) television broadcasting regions for which the digital video disc (DVD) was developed.
The world's television regions are:
Region 1 - USA and Canada
Region 2 - Europe, Japan, the Middle East, North Africa, Egypt, and South Africa
Region 3 - Taiwan, The Philippines, Korea, Indonesia, Hong Kong
Region 4 - Mexico, Central America, South America, Australia, New Zealand, the Pacific Islands, and the Caribbean
Region 5 - Russia, Eastern Europe, India, North Korea, and East and West Africa
Region 6 - China.
World Television Systems and Voltage Guide
PAL (Phase Alternation Line) offers 625 lines per second to produce a very detailed image on a wider luminance (color signal) bandwidth. The PAL system has been adopted by almost all of the world's countries using the 50 hz (cycles) voltage.
NTSC (National Television Standard Committee), the American broadcast frequency, offers 525 lines per second to produce an image with a faster frame rate, which reduces visible flickering and picture noise.