I also have used Transcend 16 gb class 10 cards exclusively on the M9, since it destroyed 2 Sandisk cards. I think it is irresponsible to just post messages like I have used Sandisk for x years without problems. The problem is very well documented and if it didn't happen yet to you it will happen sooner or later, to you and the OP. It's really like saying, I've been playing Russian roulette for a year now and I never shot myself in the head 😉