Just a little update from the thread starter. Using GT3 File Manager does let you delete the corrupted files. However, it will only deletes game saves. When you look at the card with the PS2 Brower, it still has corrupted PS2 OS icon thingys. When you try to delete those it say "Failed".
So I back to a semi-usable card, with the only way to really fix the problem is a reformat. It's frustrating, as I'm an Electrical Engineer and I know it is just a few simple commands to the flash device and it would be reformated. Maybe I'll crack it open and see what flash device Sony used.
By the way, when it did get corrupted, I had Auto Save ON. It is now turned OFF in my new GT4 save, and so far no problems.
It sucks, sucks, sucks, there is not a easier way to reformat a card.
So I back to a semi-usable card, with the only way to really fix the problem is a reformat. It's frustrating, as I'm an Electrical Engineer and I know it is just a few simple commands to the flash device and it would be reformated. Maybe I'll crack it open and see what flash device Sony used.
By the way, when it did get corrupted, I had Auto Save ON. It is now turned OFF in my new GT4 save, and so far no problems.
It sucks, sucks, sucks, there is not a easier way to reformat a card.