Duplicate IDs in Calibre

enidad2 · 12-30-2017, 05:14 PM

When rebuilding Calibre library, it detected that several books had the same IDs. The first one was added and the others ignored. This was caused by incorrect merging of libraries - copied library folders into Calibre and ran rebuild. Now I have a mess.
Tried exporting the books so I could then clear the library and reimport, but there is no individual book option. Exporting the entire library gives 2 large files that I'm afraid to modify.

I can always just copy each book from its folder, but would lose the metadata.

Is there a renumbering tool that could be run against the books and then rebuild the library or (even better) a resequence option during rebuild?

Thanks,

kovidgoyal · 12-30-2017, 10:24 PM

Right click the add books button choose add books recursively, one per folder.

enidad2 · 01-01-2018, 12:25 AM

Thank you. It took care of the problem.

You might want to include this process in the documentation -- the manual or FAQ.

It still gave me a large number of duplicates (61 out of 650), but no duplicate IDs. It was a simple thing of manually looking and removing the obsolete one. Most of the time it was just a reformatted author or slight different in the metadata.

12-30-2017, 05:14 PM	#1
enidad2 Junior Member Posts: 4 Karma: 10 Join Date: Feb 2016 Device: Kindle 4 & Kindle fire	Duplicate IDs in Calibre When rebuilding Calibre library, it detected that several books had the same IDs. The first one was added and the others ignored. This was caused by incorrect merging of libraries - copied library folders into Calibre and ran rebuild. Now I have a mess. Tried exporting the books so I could then clear the library and reimport, but there is no individual book option. Exporting the entire library gives 2 large files that I'm afraid to modify. I can always just copy each book from its folder, but would lose the metadata. Is there a renumbering tool that could be run against the books and then rebuild the library or (even better) a resequence option during rebuild? Thanks,

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12-30-2017, 10:24 PM	#2
kovidgoyal creator of calibre Posts: 43,843 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Right click the add books button choose add books recursively, one per folder.

01-01-2018, 12:25 AM	#3
enidad2 Junior Member Posts: 4 Karma: 10 Join Date: Feb 2016 Device: Kindle 4 & Kindle fire	Thank you. It took care of the problem. You might want to include this process in the documentation -- the manual or FAQ. It still gave me a large number of duplicates (61 out of 650), but no duplicate IDs. It was a simple thing of manually looking and removing the obsolete one. Most of the time it was just a reformatted author or slight different in the metadata.

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