Database snafu, way to clean it up?
I'm using Dropbox with Calibre. I'm not sure if this is related to Dropbox or not, but, I've ended up with a _number_ of empty folders (a few hundred in a collection of several thousand ebooks). In some cases the folders are completely empty, in others I just have a jpg (cover art). I think the latter may be after I grabbed metadata and covers for "missing" books.
Is there a way to cleanly remove these entries from my Calibre database? I still have all my ebooks backed up elsewhere so I haven't lost anything. But, I'd like to find a way to clean the bad entries out so I can re-import the books I'm missing.
I was hoping for a way to search for entries with...perhaps..."no" format type and entries with only cover art (or only jpg)...any search options that would be useful?
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