^^ Have any of you tried creating a second user or multiple users profiles?
If you do you then simply save your game data to the other user(s) after you finish each game.
It is simple, works and backs up your game data.
I am resposting this from another thread that details how to do it.
I have had the same issue and so have others. It seems to happen if you hit the PS button and then select "Quit the game" while it is loading up.
Sorry to hear you lost your file again. Now for the good news after the bad news. If you would have simply created another user name on your PS3 you could have saved the "saved data utility" file to the other user name. You then have a backup copy of your Resistance game. What you have to do is create a new user name. When you finish each session of Resistance, you go to the "saved data utility" file for Resistance under your primary user name. Hit Triangle on your PS3 controller and it brings up three options, copy delete, and information. It then allows you to copy it to another user name and does so very quickly. Careful, remember delete is an option too and things happen fast.
One thing important to remember. If you already have a saved utility data file under your other user name, you will have to delete it each time prior to copying from your primary user name, because you will get a message saying:
"The data cannot be saved. There is saved data with the same name at the save destination."
Be careful don't delete both by accident.
You can also set up multiple user names for multiple back ups.