Stick with B&H and avoid buying cards from private vendors on Amazon or Ebay. There's a lot of counterfeit cards out there packaged to look like the real thing. The D200 will take any card speed out there now, so buy whatever will work in your next camera. Aside from your unfortunate experience, CF cards are pretty reliable. Some of mine are now over 5 years old, but still work great. I suspect the media will go obsolete before most CF cards die.