Version 2.62

[Thom*]

I recently updated to Calibre 2.26. The description of the changes state: "Now when processing EPUB 3 files, calibre will generate/use EPUB 3 specific metadata constructs when available, for example for series."

What does "for example for series" mean? I don't see any change in how it handles book series.

[jackie_w]

I think if you use Polish to Update Metadata in book, then open the book in the Editor you will see a difference between EPUB2 and EPUB3 in how the calibre Series data is stored in the OPF.

[Thom*]

I have not used "Polish" so it might take me a little time to figure that out.

The structure for Calibre's ebook series is:
<meta name="calibre:series" content="SeriesName"/>
<meta name="calibre:series_index" content="SeriesNumber"/>

What is the structure for Epub 3?

[Thom*]

OK, I tried to polish a book that included the Calibre "series structure". Nothing changed.

My question simply is:
If the Calibre structure for a series is:
<meta name="calibre:series" content="SeriesName"/>
<meta name="calibre:series_index" content="NumberInSeries"/>

Is there a prescribed structure for Epub 3,and if so, what is that structure?

I did look for an Epub 3 definition, but found nothing, hence my question.

[BetterRed]

Originally Posted by Thom*

I did look for an Epub 3 definition, but found nothing, hence my question.

The ePUB3 standard is published by the International Digital Publishing Forum (IDPF). Describes itself as 'The Trade and Standards Organization for the Digital Publishing Industry'

BR

[jackie_w]

Originally Posted by Thom*

OK, I tried to polish a book that included the Calibre "series structure". Nothing changed.

My question simply is:
If the Calibre structure for a series is:
<meta name="calibre:series" content="SeriesName"/>
<meta name="calibre:series_index" content="NumberInSeries"/>

That's an example of an EPUB2's OPF file after Polish.
This is what I see in an EPUB3's OPF file after Polish

<opf:meta property="belongs-to-collection" id="id-3">SeriesName</opf:meta>
<opf:meta refines="#id-3" property="collection-type">series</opf:meta>
<opf:meta refines="#id-3" property="group-position">NumberInSeries</opf:meta>

ETA: Just to clarify - when I say 'in an OPF file', I mean the one inside the EPUB not the metadata.opf file in the calibre library.

[kovidgoyal]

Your book needs to be an EPUB 3 book to start with for you to seer any difference. The change only affects how EPUB 3 files are handled. EPUB 2 files are unaffected.

[Thom*]

Thank you jackie_w and kovidgoyal, your explanations are helpful.

[Thom*]

I am having trouble with this "Series Metadata".

While in Calibre, I added the "Series" information via the Metadata Editor to my book. Then I opened the book with Calibre-Editor. Interaction is set to update on opening, so the metadata was updated to add the following to the .opf file:

<opf:meta property="belongs-to-collection" id="id-3">Name of Series</opf:meta>
<opf:meta refines="#id-3" property="collection-type">series</opf:meta>
<opf:meta refines="#id-3" property="group-position">14</opf:meta>

I saved the file.
In Calibre the metadata panel showed the series info (of course it would).

I opened the file with Calibre-Viewer. I checked the metadata within Calibre-Viewer and it does not display the series information.

I transfered the file to my tablet and opened it with fbReader. fbReader did not recognise the series information.

In contrast, the following language in the .opf file is recognized by both Calibr-Viewer and fbReader:

<meta name="calibre:series" content="Name of Series"/>
<meta name="calibre:series_index" content="14"/>

What is the problem?

[kovidgoyal]

I just forgot to update the metadata reading in the viewer code to handle epub 3, it will be in the next release. As for fbreader, you will need to ask them to add support for epub 3 or stick to using epub 2.