Damn, that sucks. I've heard bad things about 3rd party memory cards as well....always best to get a first party one...better to spend 2 extra hrs @ work to make money for a first party card and 15 hrs of game saves that will likely never vanish than to have 17 hrs of game saves that will vanish sooner or later
By the way, talking about third party PSX memory cards....I bought a brand new NES clone a while back that looks like a PSX, and it came with a PSX memory card that I assume was made by the same pirated company as it seems to be of really shitty quality...but I really don't understand why a PSX memory card came together with a NES clone!!

-Speedy