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.
DMA (Designated Market Area) regions are the geographic areas in the United States in which local television viewing is measured by The Nielsen Company. The DMA data are essential for any marketer, researcher, or organization seeking to utilize standardized geographic areas within their business. DMA Data Reports.