When i download photos and videos from my camera, i move them off the sd card, and then immediately back them up to an external hard drive. eventually i rename the original photos with notes about the contents. the problem i'd like to solve is that the backup copies did not get the new name. i don't want to recopy them, that could take too long, i just want to match the files by size, date & time, and extention, none of which will change (i don't think i need checksum comparison), and put the new name on them.
I can actually match them manually by just sorting by size, which i've done in the file browser in the photo above. (isn't it amazing that no two photos or videos are exactly the same size!) now all i need is to copy each filename to the clipboard 1-at-a-time in the right panel, then apply the new name to the matching file in the left panel. but with dozens if not hundreds of files, that's a lot of work. i'd like an easier way to do that, please.
My thinking is a duplicate finder that offers to apply 1 filename to the other (in addition to deleting one, which i won't use, but that's what dupe finders usually offer to do), a file-syncing program that recognizes duplicate files, a program that shows the files that match together with a rename button or a checkbox and a Rename Selected button, a program that pops up a window for each match and offers to rename the right file to match the left or vice versa, a dual-pane explorer just like the above pic where i highlight the 2 files and press a button, whatever is easier.