Quote:
Originally Posted by Jim Chapman
Just changing the file name may not be enough - because Freda, for managing its temporary files and bookshelf details, also uses book ID (which you can find in the book metadata).
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Jim, are you referring to the <dc:identifier... tag in the OPF file? Calibre puts two of these into a book, one for ISBN and one for calibre's ID. The ISBN one might be empty, and is almost certainly so for newspaper articles. The calibre ID is guaranteed to be unique.
Calibre also includes the 'unique-identifier' attribute, telling clients which identifier is preferred. Are you checking that?
Example:
Code:
<package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="uuid_id">
<dc:identifier id="uuid_id" opf:scheme="uuid">5c72bdc4-43c4-4301-bf7d-7b22957cb00b</dc:identifier>
<dc:identifier opf:scheme="ISBN"></dc:identifier>