I want to know if I buy a micro SD card after having used another one and uting the kindle + the games, will the new one work? and willI still be able to use the old one and its save files?

Oh, by the way, I don't mean neither r4 or TTds, the flashcard is called r4itt, I have the purple one with the screw on the back. Here is its website www.r4itt.net/