So today i was playing Bioshock 2 on my Xbox and i was playing for about 45 minutes and i made it from the beginning of Sirens Alley to the part where you are about to enter Dionisious park. Anyway i went to save and my Xbox froze and i rebooted to find that my data was corrupted. Now i have to start the game all the way from the begining. So have you guys ever had to start a game over or lost progress due to corrupted data?