Ok well i got the "CD key in use" today. But before you all start to shout "shouldnt of tried to download a hack" here is a quick update for you. I wasnt tryign to download a hack (although wont lie, being able to spawn car parts would be handy at times) Instead i had downloaded a file that was said to install Dayz single player (i wanted to be able to play by my self in the SP and with my friends in our camp on MP) The video I watched in question was on youtube (for obivious reasons i wont post it) So in short, it would seem that these people lookign to do their CD hijacking are getting a little more creative, so dont download anything unless it is from a secure/trusted site. This also serves as a little heads up for any one looking for a SP opition as well.