First off I would like to say that I do not know exactly what firmware I have. I do not use the activation disc, and I have successfully burned wave 6 discs (NHL 11). I have tried on numerous occasions to burn Major League Baseball 2k11. I have multiple copies and all of them have given me the same result. Whenever I burn a copy I get the play dvd error. Is there something I am doing wrong? I was under the assumption that since it was not ap2.5 I should have no issues playing it. If someone could share some knowledge I would be very grateful.