I am Steve from SanDisk® Global Support Team. I am sorry to learn about your experience. I understand that you are facing some issues with the SanDisk® Ultra memory card. We would like to know more about your issue in order to isolate the possibilities. I would suggest you to contact SanDisk® support at 1-866-SANDISK with the Case ID:4498613 or submit a support request at www.sandisk.com/support. We will certainly assist you towards an appropriate resolution.