All of my DVDs are Region 1 and Blu-rays are Region A. They are made to play in the U.S. and Canada. This means they may not work on DVD or blu-ray players in other countries. If you live in another country and purchase a DVD player in the U.S. or buy a region free DVD player, Region 1 DVDs should work fine in your country. Some computers are also region free but many computers you have to choose which region you are when you play your first DVD. For detailed information, please see: http://en.wikipedia.org/wiki/Region_1_DVD#Region_codes_and_countries