Quote:
Originally Posted by nynaevelan
I still believe it would be nice if Calibre had some kind of restore feature or a possibility to look in another location for the files and rebuild from that, especially since it gives you the option to export the metadata info with the book files. But lesson learned, once I have fixed them all, I will just setup my backup program to automatically keep backups of the files to prevent future problems.
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Calibre does have a restore feature, since version 0.7.21. It is able to reconstruct the metadata.db file from the books in the library, using the OPFs that it automatically creates when the metadata has changed. See the command line command calibredb restore_database. The command assumes that it is operating in a calibre library folder hierarchy.
That said, it sounds like you have a copy of your library. Why not tell calibre to open that copy, using the switch library dialog? Have I missed something? Edit: re-reading the posts tells me that you don't have a backup per se, but instead the original sources. Clearly opening these as a library won't work.