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.
DVD Region Codes. There are 6 individual region codes with which DVDs are embedded. These 6 region codes function in the same way as Blu-ray region codes. A DVD disc from region 1 would be encoded as region code 1 and is therefore only operable in a DVD player that originated from region 1. The same is true for region 2, region 3, and so on and so forth, all the way to region 6. The map below shows how DVD region codes are separated and administered by geographic location. Region 1: USA & Canada, Bermuda, and US Territories