BC and AD are abbreviations for before Christ and Anno Domino mean before the Christ's birth after the Christ's birth
Standard DVDs. 1  Region 1: U.S., U.S. Territories, Canada, and Bermuda. 2  Region 2: Japan, Europe (excluding Russia, Belarus and Ukraine), Greenland, South Africa, Swaziland, Lesotho, Egypt and the Middle East. 3  Region 3: Southeast Asia, South Korea, Taiwan, Hong Kong and Macau.
What Blu-ray and DVD Region Codes Are. Region Codes are pieces of data that are embedded into Blu-Ray and DVD Discs to act as a restriction. This data, or region code, is read by the player and if it doesnât recognize the region code as compatible or local, the disc will not play.