I dusted off my PS1 and hooked it to the TV to replay some classics.

My old memory cards seem to be still working, since the saved games weren't lost as I suspected, but a couple of them are multi-bank card: every card still shows the usual 15 blocks in the manager, but there was a button combo on the controller that allowed you to switch bank and see a different set of blocks. My memory cards haven't lost their memory, but I've lost mine :P

Any clue about the button combo?