Summary: This happens to me a few times already, and so I tried upgrading the card's firmware to 1.6, same thing happens. The ONLY solution for me is to have one shot finish saving to the card, then take another shot. This card "claims" to be a class 10 product, but i think it is simply APOS.
Pros: It is good when it works, decent speed, stable connection.
Cons: It fails after a few shots. I put my secondary camera (60D) in the high fps mode all the time so that if i need the full 5.3frames per second. Here comes the problem. After about 3-4 high speed shots, the card decides to freeze. Keeping the red light on in my camera. First i thought it was slow in writing the photos, and went on taking shots with my primary camera (5Dm2). After about 10 minutes later, i discovered that my 60D's red light was on, still. Simply switchin...
Summary: Most ads for cards don't even mention the class (speed) of the card, so it is hard to shop. Good for Transcend to providing class info. I've used transcend 16 gig cards for video and have no complaints. The 4 gig cards, while of limited use so far, also are perfoming well.
Summary: I got this for my D5100 camera..used only once in my camera and second time after copying the files to laptop, it is not working. Camera showing error message that "card is damaged" but till this card is workign with my laptops. Now i need to get replacement for the same :-( Physically also look wise not that much great..you can spend little more money and go for good one. As usual delivery of Flipkart is great.
Summary: I bought this card from Flipkart and got the product on time. The card worked well for sometime and then without any reason, whenever I insert in the camera, the camera says "This card cannot be used. Card is damaged. Insert another memory card." The card was never ever taken out of the camera from the moment I got it. This is highly disappointing and I am not doubtful taking another one.