Summary: Bought to go with a waterproof camcorder. Hadn't heard of this brand before but it works exactly as expected. Was a nice bonus to find Class 10 chip for the price of a Class 4. We're very happy with this purchase.
Summary: I got one of these for just over $30 US. The first thing I did was to fill it with 32MB files and shred those files by overwriting random binary data 6 times using a program I wrote several years ago. The card was quite warm after this but I didn't think much of it at the time. I used the card in a Canon S2i and had good luck with still images but when I tried to record HD video the camera would shut down after a random, and short, time.
Summary: I got a new digital camera and found these Adata 16G memory cards. I bought three cards and in a matter of four months, two of the three have failed. I should have read the sage advise from my fellow amazon shoppers. I'm moving on to a brand with proven quality. I have never had a memory card failure until this experience.
Summary: I sure wish I'd looked on here before buying this card and trusting it. It failed in my Nikon camera after just 3 days taking over 300 irreplaceable vacation pictures with it. I'm in the process of sending the card to a data recovery company to see if my pictures are recoverable - at a cost of up to $500, if they are recoverable at all. Pure junk based on the number of similar reviews I see on here.
Summary: I have bought this card quite a while ago... the first one I received failed after 3 days of use or so, so I sent it back and received a new one... which was not working at all.! Blaming the vendor, I asked AGAIN for a new card, and received a new one which seemed to work fine at the beginning. Then one night while going out for a photo trip, I used this card for long exposure shooting.
Summary: I bought two of these flash cards in October 2009 while on sale. Like many others, I have experienced a failure that is not recoverable on one of the two cards. These cards have not been used much, filled maybe 10 times since then (I usually use them for HD movie recordings). Luckily, I had just pulled the pictures off the night before the failure.