I went through five different mem cards for my PSone before I found a very good one. Interact\'s PSone mem card was the worst of the whole lot. I formatted it, and I couldn\'t even get it to read/write ONCE! The best one IMO was the one I got, the madcatz 32 in one! It\'s great. Uncompressed memory, I\'ve filled 5 cards (of the 32) and had ABSOLUTELY NO PROBLEMS at all! It costs 50 cdn (30 us).
I won\'t be buying any interact products because of that (well, and the fact that my gameshark2 didn\'t work on 3 out of 4 games, the PSone disk it came with didn\'t work on 9 out of 10 games, and the dongle was a poorly made POS). I almost bought the madcatz PS2 mem card (cause it was a cooler "metalic" color, and came with a case), but because it cost the same as sony\'s I went with total reliability.