Question Author
Thanks all for your help. The reason I had asked the question was because I had bought the original Silent Hill for PS1 and PS2 on ebay. When I tried to play it using my PS2 memory card it wouldn't work and I didn't know why. As I thought you couldn't use a PS1 memory card in a PS2 console I was really upset as the original Silent Hill is my favourite game of all time. I rooted around in my PS stuff and found an old PS1 card and hey presto can now play the game :)