Region A consists of North American, Central America, South America, East Asia (except for China) and South East Asia.
Region B is Europe, Africa, Middle East, New Zealand, and of course, Australia.
Region C is for everywhere else, but mainly China, Russian and India.
As with DVDs, you can find the region coding information on the back of the movie cover. When a title is Region Free you should see a combination of all 3 regional icons.
Note: that not all Blu-ray movies are region coded. Movies from Warner Brothers, and upcoming releases from Paramount and Universal will most likely all be region-free. Disney and Sony's catalogue title releases are usually region-free as well, and only their new movie releases are region coded. All Fox Blu-ray titles are region coded, even catalogue titles.
If you have any questions relating to Blu-ray's regional coding please feel free to visit us www.allaboutbluray.co.uk