There was a post yesterday by EPIRB, looking for DVD region info.
There is a program available to buy, called "DVD regionfree"
You can buy it here, or download a free trial version.
http://http://www.dvdidle.com/dvd-region-free.htm
I've used it for years, on various laptops, and never had a problem.
Note to Mods.
This is a legal program, which doesn't infringe any copyright issues with DVD's