I've been looking into doing this for quite a while now and just recently got another memory card and now I'm ready to go.
What I want to do is make it so that my memory card is empty inside except for the fact that it has a female USB connector in it. That way I can plug in my flash drive and take saves that I got from the internet and transfer them on the flash drive and then to the memory card.
The only problem with this is that I've heard only certain memory cards work with this method, but I also discovered that I can download the Action Replay drivers and put them on any memory card with a USB conversion.
Finally I get to the actual question... Is possible to install the Action Replay drivers on ANY flash drive, and then plug it into the top of a memory card with a female adapter in it and then use it that way?