Probably as a result of an rsync error at some point, I have a lot of duplicates in my library, and cannot find any way to automatically find them all and merge them. I've seen mention of a "Merge Duplicates" plugin that doesn't seem to exist anymore, and I found a thread that is many years old.
https://www.mobileread.com/forums/sh...d.php?t=255394
But it refers to the plugin. I've scoured the menus and the preferences, but I am not seeing anything helpful. I estimate that I have at least 600 books which appear twice in my library, so I do not wan to do this by hand.
Short of creating an entirely new library and importing all 9000 books, is there anything I can do with the current version of Calibre to fix this?