Unlike my previous SanDisk memory card, this official memory card SONY brings me satisfaction. Load times are fast, 4GB is enough for my data backups and 5 or 6 dematerialized games.
But above all, since I use this SONY memory card, I have no such delays that affected the cinematics of certain games (eg God of war: chains of Olympus). I suggest preferably the brand SONY, if you plan to buy a memory card for your PSP-3000.