How do you find out what data is on a ps2 memory card?

I am currently playing need for speed on my ps3 and i cannot turn of my ps3 or i will lose my data. I have played the game before on my ps2 and i don't know if the memory is still on the cards i have. I want to know before i buy an adaptor and turn of my playstation if the need for speed data isn't on the cards.How do you find out what data is on a ps2 memory card?
don't put the game inside the ps2 and turn on the console with the memory card in the slot. go to the browser and click on the memory card icon. then all you're data should be displayed on the screen as little icons need for speed is probably a car.