Ultra U12-40729

Despite the designation of a Class 6 card, this card won't record HD Video on my Canon DSLR camera. I purchased another brand SD card of the same size and ''class 6'' speed and the HD video works just fine.Also, I have had one corruption of the card. I...

The card has a circle with a 6 in it indicating that it is a class 6 card. It is not. I tried this in my Rebel T2i SLR camera to record HD video and it could record about 3 seconds of video before failing. (The camera is susposed to record continuously...