I took over two hundred pictures and downloaded them to the computer. I separated Dresden, Leipzig, and Berlin into three different folders to do a batch rename. I used a program I have used hundreds of times in the past and started with the Berlin pictures. Tragedy struck. They all disappeared. It still is not clear to me how or why it happened, but they were all deleted somewhere. I did a desktop search, a deleted folder search, an attempt at undoing the previous commands, but nothing worked. I downloaded three different photo recovery programs and searched both the computer and the memory card from the camera, but they were not to be found. There was one lone survivor of over 78 photos of Berlin. Strangely and coincidentally, the only photo to survive was one of the Holocaust Memorial.