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.
1 For example: Region 4 DVDs WON'T PLAY in a standard Region 1 DVD player; Region 1 DVDs WON'T PLAY in a standard Region 4 DVD player. 2  U.S.A. and CANADA share the SAME REGION CODE: Region 1.