Quote:
Originally Posted by Starson17
Unfortunately, the answer is "Yes." To put it another way, all metadata is stored in the database - metadata.db. If there's metadata stored anywhere else, it's a byproduct of the fact that Calibre accesses files by labeling them with bits of metadata, or because the user has intentionally stored that metadata elsewhere in a backup, opf file or inside a format/file by making a same format conversion.
(More accurately, on point 3, I believe the database does not store whether the book has a "cover.jpg." Calibre just looks to see if it exists.)
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Tonight I will test your comment on point 3. If you're right, you might have just saved me a lot of effort playing with book covers. I essentially have two near-identical file structures: The old one with no metadata.db, but all the cover.jpg files, and the new one with a correct metadata.db and no cover.jpg files. I can copy the old one over the new one (just the jpgs!) and they should go in the correct places. There are more than 1000 cover files, so it's worth a try. I will of course make copies before trying this.
Also, on the backup/restore part of the discussion, just based on my near-catastrophic database problems, I agree with dwanthny completely - the only way to back up this database is to backup the
entire database. Disk space is cheap.
Thanks again for the info/advice.