I tried to do this today with a friend. It seemed easy enough. I plugged in a USB drive, copied my Biohazard 5 save file, took it to a friend's house to play, copied it to his saved files, booted up BH 5, and when it went to load the game it said that the game could not be played because it wasn't on the same profile. WTF? Why should that matter? Back in the PS2 era, if you had a save, you could copy it and play it on any system.
What if my PS3 dies and I need to transfer my saves to a new system? WHat then? So I beseech you. Has anybody SUCCESSFULLY copied and imported save files to a new system, and what did you do? Most of the google searches I've done have come up with how to copy the original and then saying you can just copy and play. But is this with all games? Let me know if you have any other information you can add.