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jist · 11-09-2020, 01:12 PM

Thanks DNSB.

Some questions though.

I don't understand where you say: "the content.opf file internal to the epub is not modified in the library."

I don't see any 'content.opf' files. Do you mean that they are somehow contained within the epub file and not visible?

If you meant to say 'metadata.opf' instead, I checked, and they do get updated as soon as you make an edit in Calibre.

So, Calibre does not store or read metadata in the epub files themselves.
Hm, I was guessing that was possible and even useful when copying a book to an ereader that can read metadata from an epub.

But then again, I have no clue if or how epubs support metadata.
I am acquainted with how metadata works for mp3 and flac audio files, but I guess it's a completely different ballgame for epubs.

11-09-2020, 01:12 PM	#3
jist Enthusiast Posts: 40 Karma: 10 Join Date: May 2018 Device: Onyx Note Lite - Win10	Thanks DNSB. Some questions though. I don't understand where you say: "the content.opf file internal to the epub is not modified in the library." I don't see any 'content.opf' files. Do you mean that they are somehow contained within the epub file and not visible? If you meant to say 'metadata.opf' instead, I checked, and they do get updated as soon as you make an edit in Calibre. So, Calibre does not store or read metadata in the epub files themselves. Hm, I was guessing that was possible and even useful when copying a book to an ereader that can read metadata from an epub. But then again, I have no clue if or how epubs support metadata. I am acquainted with how metadata works for mp3 and flac audio files, but I guess it's a completely different ballgame for epubs.