Informal term meaning "worldwide". Region 0 is not an official setting; discs that bear the region 0 symbol either have no flag set or have region 1–6 flags set.
- United States, Canada, Bermuda, U.S. territories
- Europe (except Russia, Ukraine, and Belarus), Middle East, Egypt, Japan, South Africa, Swaziland, Lesotho, Greenland
- Southeast Asia, South Korea, Republic of China (Taiwan), Hong Kong, Macau
- Mexico, Central America, South America, Australia, New Zealand, Oceania
- India, Afghanistan, Ukraine, Belarus, Russia, Africa (except Egypt, South Africa, Swaziland, and Lesotho), Central and South Asia, Mongolia, North Korea
- People's Republic of China
Reserved for future use (found in use on protected screener copies of MPAA-related DVDs and "media copies" of pre-releases in Asia)
International venues such as aircraft, cruise ships, etc.
ALL. Region ALL discs have all 8 flags set, allowing the disc to be played in any locale on any player.