I got a message saying that there was not enough room on the disc so I removed from the disc three files. The backup disc was made but when I returned to my the original picture files they contained icons for each photo with a small box and a red cross in each.
Running picture recovery software has not found the missing photos.
I am bemused as I didn't cut them, I only copied them so surely they should remain unaltered.
Ant idea how I can get them back?