[BlindSquirrel]

First, thanks for the response.

I think the behavior you're describing is something else. I'm perfectly fine with retaining my original ebook when Calibre adds the book into its own library. In fact, I don't want to delete that original file at all. This is after that. So this is what I do that is the source of the question...

1. Once the book has been added to the Calibre Library, I want to modify the metadata to include the results of the "download metadata" button, ads well as a couple of personal tags, so I go through that process.

2. I find that if the author name is different in the downloaded metadata (eg. "JK Rowling" vs "J. K. Rowling"), then Calibre updates the data for me in its library, which is fine, but it also creates a new folder under the modified author's name. So far, that's all fine and good.

3. If, after you complete this process, you go look in the filesystem Calibre is using for its books, you'll now find two entries, one under the old author name, one under the new. That's where I'd like to eliminate the redundancy.

Is that a thing, or do I just have to remember to go back into the filesystem and delete the old files and folder? Hope that makes sense; I'll make a video if it doesn't.

It strikes me that there would be one of two solutions to this problem, and I'm wondering if I'm just missing the appropriate ticky box that's somewhere in the configuration.

1. When metadata is updated, the original file and folder in the filesystem should be modified/overwritten with the result. or...

2. When editing metadata results in the creation of a new file/folder, we should have the option to delete the existing folder (the one that has been added to the library, not the original) as part of the process.