I have worked on. It seems like the camera produces some sort of ID tag with pictures but not with every picture and not all the time. I just tell user to delete the tag. It's a pain to do so and I have no idea why they occur, I suppose only the person(s) that wrote the software know the reason.
I've been having trouble with my computers floppy disk. I can take one picture with my camera, Sony Mavica the one you put the 3 1/2 floppy right into and when I put it into the computer it shows 2 icons. One is the normal one that I've always seen and tells me how big the pic is and I can open it and see this pic, but the other one is different and the computer cant read it. It just has the same picture id number as the pic I can see. One of these extras shows up for every pic I take. It was doing this on older disks I had used and erased so I thought it was some hidden files but I bought new disks and its still happening. Can anyone tell me what this is?