Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Has a mind of its own

I'm glad most people are happy with their card because I'm having a terrible time with mine. I just came back from a short trip and was transferring 21 pictures that I took to my computer. By the 4th picture, things came to a halt, it might have been my computer. When I tried again, the camera gave me the "No image" message. Yes, the card was blank, all 21 pictures in the camera simply vanished before my eyes while I was transferring them to my computer. This is not the first time. It did do a few little funny things here and there before. Obviously I missed the crucial sign of a greater potential trouble back then. This memory card has compeletely made me paranoid about taking pictures with a digital camera. It's one of those things that money refund won't replace what's been lost.