Quote:
Originally Posted by Axanar
Well first of all Calibre is just an "organizing" tool. You can add books to it and these books are being copied over to the "Calibre Library" folder of your home directory.
All downloaded metadata from e.g. Amazon is being stored in the sqlite3 file called "metadata.db" within that "Calibre Library" folder. The metadata.db is actually the file responsible in keeping your database intact, ordered, structured etc.. The database is at the end the visual representation of what Calibre shows the user.
The individual book folders inside the "Calibre Library" contains the *.opf files (individual exported metadata per book basis) and optional a cover image and the book itself.
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Yes, I'm well aware of all that
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My point is that the reason you are changing the metadata is presumably because the change you make to (for example) an author's name is the change you want to show up when you send the book to your reader.
Calibre only ever applied metadata changes to a book when you either export the book, either by sending it to a device or saving it to the disk, or you do a format conversion on it.
If you don't want the metadata changes to show up on your reader, there would seem to be little point in making them at all!