I took pictures for my brother's production for a play and went to transfer the RAW files to my computer that is running 64-bit Windows 7 for editing like I always do. There is a USB 3.0 port in the top of my case. I plugged my 32GB SanDisk SD card into a card reader and plugged the card reader into the port. What I usually do is open my computer, open the drive folder, copy it to my desktop, and go from there. This time, however, I could not copy the folder to the desktop. Instead, I got a small pop-up window with an error code (0x000000a) saying that "an error is preventing the photo or video from being displayed. I popped the SD card back in my camera and it says that there are no pictures on the card. I tried multiple USB 2.0 and 3.0 ports on my own computer and my friend's computer. My friend's wouldn't even acknowledge that the card reader (or an unidentified device) is even there. Now, when I plug the reader with the card in, I see only one file in the deepest subfolder (E:\DCIM\100D5300) that I can neither open or transfer. Under properties, the drive still shows about 10GB of used space. It's worth noting, too, that I have enabled "Show All Hidden Files and Folders." Are the pictures lost? The data still seems to be on the card, but is there a way to recover it and access them? Thank you so much for your time.