I have always relied on Sandisk SD cards. Other brands have let me down in not living up to the rated speeds. I have about a dozen Sandisk SD and CF cards.
However, my last two Sandisk SD cards (one an Extreme 32GB and the other an Extreme Pro 32GB) have both been DOA. Neither the camera nor the computer could format the cards. In the Extreme card case, the camera could see it, but reported an error. In the Extreme Pro case, the camera wouldn't even turn on. Had to pull the battery to get the camera back, indicating that the card itself had a short in it.
Had I just been lucky before, or is Sandisk quality slipping?
Regardless, any tips for a different reliable brand?