I have heard of this before and for the life of me I do not know what third party program my friend had to use to get it to work. I know he had to hook up both drives in his PC to make a that happen, because he didn't want to mess around with hacking his PS3. If you are willing to install those into your PC I'm sure a quick Bing or Google search will help you find a utility that will do what you need, use at you're own risk though. (c;
To mitigate that sort of risk I usually try to find utilities that have youtube videos or very active forum boards and doing research into the kinds of problems others have run into with it, if there's a pattern and they don't fix it I usually move on. I have no personal experience with any program for a console to move save files around so sorry I can't be any more help, but hopefully this points you in the right direction.