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.
It is a common misconception that because a DVD disc is Region Free, it will play on any player in any country. Whilst this is true to a certain extent, the actual video format of the disc also needs to be taken into account. For example, the video standard in the USA is NTSC, and the video standard in Europe is PAL.