Quote:
Originally Posted by james.villacorta
Is it possible to extract automatically the ISBN Data within the content.opf with the tag <dc:identifier id="ISBN">902148482</dc:identifier>. So that no more editing on every book shall be done. Note that I am using calibre in converting an epub to mobi. Would it be possible that the calibre will utilize the content.opf in extracting the ISBN to be available on the mobi metadata.
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If you import a file that has ISBN stored internally, and specify that Calibre should use internal metadata, it should get the ISBN. If a record has ISBN, it always uses that ISBN to retrieve metadata.