ATmega163/new generation/open platform

My Satellite Setup
broadband. cable
My Location
scotland,north lanarkshire
suppose im just like a learner driver to u hi tech guys,u wish i wasnt here, but i bought 2 ATmega 163 new generation/open platform cards, one is code protected,the other is not, is there a reason for code protecting a card that was sold brand new?, after all , i didnt expect the card to be loaded with info that i shouldnt see.
on another matter, should i clean out my card totaly before adding files and such ? programmes i use !!! usb pheonix/ nagra edit.