aaahhh, i only use official Sony brand cards, i guess that cheap knockoffs (i refuse to use MadCats, ect...) could be the cause of save file corruption, that actualy didn't cross my mind, but it's true you get what you pay for... oh i also keep my stuff in immaculate condition and away from all sources of dust, moisture, and magnetic currents like TV & Radio speakers, which also helps prolong life and reliability...