You probably don't have the right kind of memory card. In order to save a PS2 game, like FF VIII, you need a PS2 memory card.
If your talking about the playstation 1 version of the game then you cant save any playstation 1 game onto a ps2 memory card
you can. Just find a save sphere.
I do believe that is possible but you should save anyways just in case.
If your loading a current save file it should show your current data.
One save file for Final Fantasy VII requires 1 free block on the memory card.
Press + to open the menu then press 2 on Save.
simple put no
You cant get it back because your not suppose to lose it You must go back to a previous save where you didn't cheat - yes I know you cheated.
Save over files.
You can save via the menu on the world map, or save points in dungeons. These save points appear as blue diamonds.
by clicking the save button (.)(.) -__-
Create internal memory cards to save game progress for PS2 software titles. see related link