Six region codes determine where you can watch your DVD. If you purchased a DVD in Sydney, you won't be able to watch it in Paris.

The different areas of the globe have been divided into eight separate regions to accommodate the varying release patterns of movies by the major studios. Therefore, each DVD player is compatible with a certain region: Region 1 for the United States and Canada, for example, and Region 2 for Japan and Europe. A DVD designated Region 0, "Not Regionally Coded" or "All Region" can be played on any player regardless of its nationality.

A number indicating the Macintosh version of the written language of a particular region. Constants are defined for each of the region codes recognized by the Macintosh script management system.

Most DVDs are region coded and theoretically only playable on machines with the same region code. In Britain and Europe, most DVDs are Region 2 encoded. Find out more about DVD Regions.