Ok help me!!!?

i asked this question but i guess i need to refine it.i have a playstation 3 and i played a ps1 game on it. it has 4 discs and when i try to load the third disc it dosent work and i bought a new one and its the same so if i send the save data on the ps3 to a memory stick will the game load if i put the memory stick( i mean usb) into the ps2 and play the third disc? ill admit its very long winded here but ill giv 10 points to the best answer.