I have in my collection a disc called "memory card tools" for the PS2, is there someone here who also has this disc? If you do, what does it do? Since I don't have any memory cards to test it with, and it doesn't "boot up" without one, I can't test it. It is a 1,2 GB big disc, but only 32 MB will show up on the computer, but maybe it's like that with every PS2 disc, I wouldn't know. Maybe this should be in "Rare and obscure", or just "general gaming" if it's very common, but I thought it would fit best here.
Sounds like the typical QA tools for game testing. In order to test various system messages properly in a game, you use it to format/unformat Memory Cards and corrupt/copy/delete data to trigger the respective messages in-game to see if they actually work properly + to evt. check if the right localized strings load (if you're doing it for localization testing purposes) (The odd/increased size is probably just dummy space/padding applied to push the data further away from the center of the disc.)
if it a memory card tool one it can link up to pc by tcp ip and on pc can direct up/down file and make folder ( command line only)
I used to have a similar disc years ago but never did get a chance to use it or find out anything about it. At first i thought it was like the disc i had for my old mad catz memory card where i had to boot the disc up first in order to get the memory card working for saving games and data but i lost the memory card so never got a chance to test the tools disc to see if it worked the in same way but with some extra functionality.