[quote name='cleaver']I had a problem with the non-gaming 1 GB Sandisk, which this is. When transferring a movie, my PSP froze. After turning the PSP off and on, it didn't recognize the memory stick anymore. No problems with my 1 GB gaming Sandisk or 512 Sony.[/QUOTE]
Sounds like you had a faulty stick. The only difference between the gaming stick and the regular one is the color. Call Sandisk, get it replaced.