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jsibley · 02-12-2026, 03:54 PM

I found a recent (most likely the most recent) version of metadata.db in my onedrive recycle folder. It is dated Feb 11 and is over 3 MB.

Is that likely to be compatible with Calibre v9? Might I be able to swap out the 2 versions of metadata.db?

Also, I see versions of metadata_db_prefs_backup.json. Might I be able to use that as well? Would that get all of most of my settings back?

Then, I'll figure out a safer way to manage things. And, once I figure this out, I can keep my books on the cloud, it's "just" the Calibre files that should be local? Is that correct?

Thanks for any help with this!

02-12-2026, 03:54 PM	#7
jsibley Junior Member Posts: 7 Karma: 10 Join Date: Mar 2020 Device: Kindle	I found a recent (most likely the most recent) version of metadata.db in my onedrive recycle folder. It is dated Feb 11 and is over 3 MB. Is that likely to be compatible with Calibre v9? Might I be able to swap out the 2 versions of metadata.db? Also, I see versions of metadata_db_prefs_backup.json. Might I be able to use that as well? Would that get all of most of my settings back? Then, I'll figure out a safer way to manage things. And, once I figure this out, I can keep my books on the cloud, it's "just" the Calibre files that should be local? Is that correct? Thanks for any help with this!