I agree Frostbite. We make/release indie DVD's -all region (i.e. region free) - and sans copy-protection - both are easily cracked by the pirates within a day or so of any changes/strengthening of the code, and it's just not worth it - certainly not worth alienating the bulk of the genuine users.
Just a note on setting codes into DVD players to make them region free - make sure you follow the instructions very carefully, or else you could end with a player that will not play any regions at all!