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Region codes and countries
DVDs sold in the Baltic States use both region 2 and 5 codes. DVDs sold in Japan use the region 2 code and Hong Kong, Macau and Taiwan use the region 3 code, with Hong Kong sharing region 6 for releases after the reunification. Region 0 (playable in all regions, except 7/8) is widely used by China, the Philippines, Hong Kong, Macau, and Taiwan. DVDs in Latin American Spanish use both the region 1 and region 4 codes. Most DVDs in India combine the region 2, region 4, and region 5 codes; Disney discs contain only the region 3 code.
European region 2 DVDs may be sub-coded "D1" to "D4". "D1" are United Kingdom–only releases; "D2" and "D3" are not sold in the UK and Ireland; "D4" are distributed throughout Europe.
Any combination of regions can be applied to a single disc. For example, a DVD designated Region 2/4 is suitable for playback in Western Europe, Oceania, and any other Region 2 or Region 4 area. So-called "Region 0" and "ALL" discs are meant to be playable worldwide.
The term "Region 0" also describes the DVD players designed or modified to incorporate Regions 1–6, thereby providing compatibility with most players/discs, irrespective of region[s]. This apparent solution was popular in the early days of the DVD format, but studios quickly responded by adjusting discs to refuse to play in such machines. This system is known as "Regional Coding Enhancement".
It may be difficult for American companies to enforce their copyright rights in the countries in the Region 5 area, and thus they may release Region 5 DVDs earlier than Region 1 DVDs to encourage consumers to opt for a legal version, rather than a pirated copy of a DVD screener. Many of the countries in the region 5 area were historically either incapable or unwilling to uphold American copyrights. In many of the countries in the Region 5 area, war or extreme poverty make intellectual property rights a low-priority interest for the governments.
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