I just got done doing a lot of cleaning on my memory cards. Of the two PlayStation memory cards I have, I got everything I didn't delete on the first memory card, and of the three PlayStation 2 memory cards I have, I got everything I didn't delete on the first memory card. However, the first PlayStation 2 memory card, that's essentially full, has some corrupt data on it and the second PlayStation 2 memory card just has one corrupt data file on it. My question is how do I delete corrupt data? Because it won't let me. It let me delete corrupt data that had KB, but corrupt data with "? KB" cannot be deleted. Also, and this is kind of off topic, but why do PlayStation memory cards not show the last date a game was saved? PlayStation 2 memory cards do.