I've often wondered how bog standard DVD players can ignore these intentional errors and get on with things, whilst ripping software like AnyDVD seems to be in

I've often wondered how bog standard DVD players can ignore these intentional errors and get on with things, whilst ripping software like AnyDVD seems to be in a constant arms race against ever evolving DRM. Of course the problems start when you have a player that isn't bog standard (like some Sony players), or if you want to do something far out like watch a DVD on a PC (even a Sony PC).