Region coding is a way to segregate content, enforce price differentiation and allow film distributors to conform to multimedia laws governing a specific country or region. For example, the Middle East is generally more conservative than the West, so there are many things that are not allowed to be shown in movies or TV shows. Region codes help enforce these laws since movies with prohibited content are simply not marked for that region, meaning all players for that region are not able to play those movies, even if the user wanted to. This can help the distributor avoid lawsuits if some of their media happen to make it to those stricter regions. This also helps enforce region-specific pricing since consumers from a certain region cannot simply get a cheaper copy from a region they are visiting. For these reasons, consumers have largely considered region coding as a bad practice, which stifles the freedom to choose. However, most film distributors are now releasing media, especially Blu-ray discs, as region free because they now believe that it is better for sales and coverage.

Region coding for DVD:

• Region 0 — Also called FREE. This is not an actual code setting but it means that either there is no flag set or all flags for Regions 1–6 are set.
• Region 1 — United States, Canada, Bermuda, Caribbean, U.S. territories
• Region 2 — Europe, Japan, Middle East, South Africa, Swaziland, Greenland, Lesotho, British Crown Dependencies, British Overseas Territories, French Overseas Departments and Territories
• Region 3 — Southeast Asia, Hong Kong, South Korea, Macau, Taiwan
• Region 4 — South America, Mexico, Central America, Australia, New Zealand, Papua New Guinea and much of Oceania
• Region 5 — South Asia, Russia, Afghanistan, Ukraine, Kazakhstan, Belarus, Africa (except counties included in Region 2), Central Asia, North Korea, Mongolia
• Region 6 — China
• Region 7 — For future use or MPAA-related releases as well as "media copies" or pre-releases for Asia
• Region 8 — International venues such as aircraft and ships
• Region 9 — Also referred to as "ALL" because it has all region flags set, allowing it to be played in any location and player

Region coding for Blu-ray:

• Region A — Americas and dependencies, East and Southeast Asia but excluding those that appear in Region C
• Region B — Middle East, Africa, Europe, Southwest Asia, New Zealand, Australia but excludes those falling under Region C
• Region C — Central Asia, Mongolia, Mainland China, South Asia, Belarus, Kazakhstan, Ukraine, Russia and all their dependencies
• Region Free — Also called worldwide; it is not an official setting but rather the lack of a region setting or it has all three region settings.