getting closer! the latest version can delete or create links to duplicate files. Use CLEAN UP button after you marked your duplicates to see it in action
AS THIS IS A TEST VERSION AND THERE'S LIMITED UNDO POSSIBILITY, TEST DELETIONS ON COPIES OF YOUR FILES
Tested with 10,000 ebooks (pdf, epub, mobi, djview).
Works fine.
Now I run it with a larger number of files, it takes a while ( 4h now on an SSD ) I'll let you know when it's done.
I'll also test it with a few thousand mp3s and let you know.
searching for clones takes some time, and knowing how long is left doesn't make it any quicker
the best advice is to let declone work and do something else