hello guys i have xbox 360 PAL machine modded of 2010 can run region free games and pal and some of games ntsc/j can run all older games like gears of war 2 nd call of duty 4 saint rows 2 and call of duty black oops and mw2 but unfortunately cannot run battle field 3 nd mw3 nd asassion creed 3 nd saints row third , but for the newer games its appear i have to update they system :/ and am afraid to update if i update it ? i will loose to run copy cd ? right ? so any solution ? please help me i want to play badly :/ battle field 3 and mw3 nd saints row the third please any solution nd help ? thanks in advance <3 sorry for my weak English.