How Does Region Locking Work?

Region locking – when a stream or disc only works in a certain part of the world – is super-common and super-annoying. Why and how is it implemented? Thanks to Audible for supporting our channel. Get a free audiobook with a 30 day free trial at http://www.audible.com/techquickie. Follow: http://twitter.com/linustech Join the community: http://linustechtips.com source