I recently switched to the Hoodman RAW cards when a couple of my old cards failed. Thankfully I was able to recover the images, but it was a PITA. When I am shooting weddings, the number one priority for me is reliability... there are no do-overs... no re-shoots... no second chances. The shots have to be there. Also, as someone who shoots thousands and thousands of images at every event, speed is also of the essence and I don't ever want to fill my buffer. When I am "workin' it" with a bride and/or groom... I don't want to be slow downed by slow writing cards. RAW cards are fast and reliable and I've been very impressed with their performance so far.