DVDS come in different regions;
Region 1 = USA and Canada
Region 2 = Europe, including France, Greece, Turkey, Egypt, Arabia, Japan and South Africa
Region 3= Korea, Thailand, Vietnam, Borneo and Indonesia
Region 4= Australia and New Zealand, Mexico, the Carribean, and South America
Region 5= India, Africa, Russia and former USSR countries
Region 6= Peoples Republic of China
Region 7= Unused
Region 8= Airlines/Cruise Ships
Region 0= No Region Coding
You can only play a DVD if the player your playing it on supports that DVD region. Check the DVD to see what region it is.
There are ways around copying copy-protected DVD's but I think its illegal even for personal backup purposes (I may be wrong). I don't know. You could try searching Google.