I only ever used sony mem cards, even on my old PS1, I don\'t think it\'s beneficial to anyone to try to skimp a few bob and buy one of the cheaper shit ones.
To date (touches wood (ooo-err)), I\'ve never had a problem with mem cards.
My PS2 however, that\'s a different matter.
My old one went for a shitter about 9 months ago or so, and now my new one seems to be playing up a bit when it attempts to load textures, most notably in GTA SA, large sections of the map appear blank or in low res for ages.