Originally Posted by
Gameguy
I would like official memory cards for the Saturn and Sega CD but they're pretty expensive and hard to find. The internal saves will basically last long enough to play through a game but you can't really archive them, they only work as long as the batteries do.
It's the same problem with the Turbo Duo, only there's no battery but a capacitor powering the saves. I can't remember how the 3DO or CDi handled saves. Early CD systems weren't great at saving games. Sony got it right with the PS1.