Quote:
Originally Posted by hmf
Oops sorry...I have 2 versions of the book..in epub and mobi. If I drag the mobi version to my kindle the TOC markings are there. If I add the mobi to Calibre the TOC markings disappear when adding the mobi from Calibre (without any further conversion). Hope that's clear.
The same behavior as with the epub version.
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You continue to be clear as mud. Calibre won't delete a TOC of an already created file using any basic library management function. You mention having an epub and a mobi, but you make no mention of how you got two different formats, or what Sigil has to do with the process, which you already mention using.
Here are the basics -
1. Calibre will use the existing TOC when doing a conversion from epub->mobi or mobi->epub. If the TOC has been trashed then Calibre may attempt to autodetect/auto-generate a new one, but this will often fail unless you've properly configured it. Based on this thread it's highly unlikely you've configured the detection.
2. Opening an epub in Sigil 0.3.x will destroy your existing TOC and build a new one. With many ebooks the automatically generated TOC that Sigil creates will have no content, i.e. Sigil destroys the TOC. Sigil beta will preserve the TOC as theducks mentioned.
If you used Sigil and this happened this brings you back to point 1.