Comment by escapecharacter

Maybe you should be friends with https://news.ycombinator.com/item?id=43529823

But for real, I've also been working on large-scale photo/video management, and the question of where to keep additionally metadata has bothered me. It seems right to want to keep it "in" the file, and so I want to write it into EXIF, or even steganography, or something.