My wife recently picked me up a clean, used original-design PSX (not the PSOne style, if that makes a difference) as another console for my man-cave's "retro-gaming corner".
I have been playing FFVII and Gran Turismo on it, using the same memory card for both. The card looks like the genuine Sony article, and came with the console. However, I have been having problems with the FFVII savegames becoming corrupted. I had to start over from halfway through the first disc not long ago because both of the savegames that I had been alternating between had become corrupted. (I now rotate between three savegames and have been saving at every opportunity). The GT savegames have not been corrupting, but I have a sneaking suspicion that this game could be causing the problem, as the FFVII games have always come up corrupt after switching between FFVII and GT.
Is the memory card past its prime? Should I not be trying to save both games to the same card? Is there a special arcane power-off procedure like there was when powering off the NES and SNES? Any other suggestions or additional info needed?