[patTeam241]

I've never done it, or even played with a playstations output, but I have some idea of where you might start off. I believe that the controllers are both digital so you'd need to build a circuit that would allow you to interpret the signal, and then output that signal to either to a serial port or a usb port. Serial would probably be easier, but it'd still take a lot of work. You may be able to find instructions on converting a playstation controller to a computer gamepad online, which would make this much easier. After that you'll probably need to write a custom program to take the data and then edit it into a midi file. I have played with midi a little and the file format doesn't seem overly complex. If you look online you can find the file setup. I would think that unless there are easy instructions for using the controller w/ a pc, and using an input to come up w/ midi files this will be a lot of work, but it would also be pretty interesting, keep us posted on how it comes out.