answer:What kind of disc is it? What kind of pictures? What kind of hardware do you have? What OS? If it’s a CD-R or DVD-R, it means it is read-only and can’t be changed, though this shouldn’t affect copying it to a medium (e.g., a hard drive) where it can be changed. I think even a rewritable disc would still need to be erased and then rewritten, but then I stopped using these things years ago.