so does the memory card look exactly like the one in the machine now you can't use those micro SD cards and stuff or a flashdrive?
You can't use anything other than the memory card to save but you can back up your save games
Here's how to back up your save games:
1) Download the files here:
http://www.quickshare.co.za/files/6c6kilnq/PS2_Utilities.rar.html
2) Extract uLE v4.37 boot CD ISO.zip and burn the uLE v4.37 boot CD ISO.iso file on to a CD.
3) Format a USB Memory Stick to FAT32. Put the CD and USB Stick in to the PS2 and boot the PS2 up.
4) Once it's loaded up Press O and you'll see a list. First press L1 and then [] (square) and then press ^ (triangle).
5) Now that everything is readable go to Mc0:\ Press O to get in to it. You will see all your save games now.
6) Press X on every save game you want to back up it. It'll look like e.g. * GOD OF WAR 2. The * show you have selected it.
7) Press R1 this time and scroll down to copy press O to confirm. The icon at the top right should turn green. Press Triangle to go back.
8) Now go down to mass:\ O to get in. Press R1 again and now select PSUpaste. Once copied power the PS2 down.
9) Check on your PC to check all your save files are on the stick. If they are just delete the save file on your memory card.
10) Enjoy your free'd up memory card
NOTE: To put save games back follow 3 and go to mass:\ first copy the save game on there and PSUpaste it in Mc0:\ or Mc1:\ (Mc0 is memory card 1 & Mc1 is memory card 2)
You can also install Free McBoot which eliminates the need for the CD. Just unpack all the files from Free_McBootv1.8b.rar
Put everything on your memory stick plug it in to the PS2 and start uLaunchELF. Scroll down to mass:\ and open FREE_MCBOOT.ELF.
It'll load up Free McBoot and once loaded press X to start the normal install and install it on either memory card. Once installed
you wont need the uLaunchELF disc anymore. Just start the PS2 and scroll down to uLaunchELF and press X.
I bet I over complicated things so here's tutorials that might make it simple
uLaunchELF:
http://www.console-exploits.com/forums/showthread.php?t=9646
Free McBoot:
http://www.youtube.com/watch?v=7moC29aeaYw