I have used dozens over the last few years and none of them have failed. Granted some of the cheapo 512 MB ones I got for free at work I only used a dozen or so

I have used dozens over the last few years and none of them have failed. Granted some of the cheapo 512 MB ones I got for free at work I only used a dozen or so times before I lost them, so I don't know how long they would have held up if I used them over and over again over a long period of time. But I had a Lacie XTreme Key I used for everything daily from work, school, library and it never failed. I lost it before it failed, so I guess I am more of a threat to my data than the memory stick.