Does anybody know of a good tool for merging folders that may contain many duplicate files? My music library has about 1500 files. It's moved computers and drives with me ever since it consisted only of MP3s I downloaded over dialup in the 90s. Most of my games and my music library were copied over to my big SSD when I got it, but the old copy still remained, and there's few folders/albums that exist in one place but not the other for whatever reason*. I'm looking for tool where I can tell it to merge both folders and it will look not just at the file name and date modified, but also the contents to see if they're otherwise identical. Might run into a few cases of the same song being tagged differently, but that should be rare. Does anybody use something like this?