DVD Region codes
DVD region codes are a digital rights management technique designed to allow film distributors to control aspects of a release, including content, release date, and price, according to the region.
DVD: 0/All (Region Free/Worldwide)
DVD: 1 (US, Canada...)
DVD: 2 (Europe, Japan, Middle East...)
DVD: 3 (Southeast Asia, Taiwan, HK...)
DVD: 4 (AU, NZ, Latin America...)
DVD: 5 (Russia, India, Africa...)
DVD: 6 (China)
Blu-ray Discs use a much simpler region-code system than DVD with only three regions, labeled A, B and C.
Region Code Area
A Includes most North, Central and South American countries and South-east Asian countries including Taiwan, Hong Kong, Japan and Korea.
B Includes most European and Middle Eastern countries, all of Africa, Australia and New Zealand.
C Includes the remaining central and south Asian countries, as well as China, Russia, India, Belarus and Ukraine.