I heard of the same problem with someone on IGN but they didnt fix there yet.
I would have suggested unplugging your PS3 and then plugging it back in and restarting the machine up. That fixed an error I was having that was wireless router related.
You can export your saves to it, but if you wanted to load the game save you would have to always reload the save file to the PS3
They are really only good for storing videos and music on if you are loow on space, and also backing up your PS3 incase something bad happens.
Rag Doll Kung Fu is free for all US accounts at the PS Store, great chance for some free trophies. If anyone needs help, here is a Rag Doll Kung Fu trophy guide :)
Sir, you have no clue what you are doing. You are just going to mess your PC up. Just update your firmware. But an external hard drive to backup your PS3 if you are so scared.