But what I do know is it will currupt your save file. Now lets say I beam up and I quit playing for the day and dont save. Now the next day when I hit continue I am playing off the currupt save. It may not look like its currupt but the save has errors on it. Now compound this over time and before long your save file is a mess. I am going to test my theroy tonight, no special turn this or that off to make your PS3 run better. The only change I am going to make is turn off auto save. I will update this thread and let you know when I get the first crash.
P.S. I think the reason why some people are having no problems is because they take their time in game and do not use fast travel, ect. Which gives autosave plenty of time to save before the next auto save. And I think the reason why some of these other methods work is because it gives the game more processing power when your not connected to PSN to process the errors on the currupt file.