|01-31-2014, 10:24 AM||#1|
Join Date: Sep 2010
the <dc:title>field ?
having a debate with my library & hence with overdrive support re a problem where 2 books ( a book 1 + a sequel) , with same author, same publisher....have the same value in this <dc:title> field.
My issue was that one book over-wrote the other when both were checked out & downloaded into reader software on PC. Overdrive say PEBCAK, but I maintain that if these 2 books are added to sony reader software, then it sees only 1 book...
here's what I said to overdrive support:
so, OK - I know we're not supposed to peek into loans but I did & I saw what is below - so will someone please tell me if I am talking sense or nonsense in the message extract
.. or other wise give a for dummes take on what the dv.title field in opf is there for - thanks.
Ok guys I did a little unauthorised hacking before returning the 2 books, so please allow ME tell YOU what I think your techies need to check .
( NB I am very reluctant to retest all this – if I repeatedly checkout & return the books (using different PC and/or different download software) it is likely that my account will get locked for excessive borrowing )
Below is a previously saved extract of part of the content.opf file from book 2: Deaths’ Head maximum offence
Please observe that the dc.title field is incorrect. It is the dc-title field value from book 1.
I am 99% certain that the reader software used this field to obtain the book title
So the reader software treated this as a duplicate book and replaced the real book 1 with this one.
Please take a closer, more technical look at this
PS please don’t shoot the messenger for examining your code – only trying to help !
<package xmlns="http://www.idpf.org/2007/opf" unique-identifier="DeathsHeadMaximumOffence" version="1.0"> <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf"> <dc:title>Death's Head</dc:title> <dc:creator opf:file-as="David Gunn" opf:role="aut">David Gunn</dc:creator> <dc:publisher>Transworld</dc:publisher> <dc:identifier id="DeathsHeadMaximumOffence" opf:scheme="isbn">9781407037684</dc:identifier>
<package xmlns="http://www.idpf.org/2007/opf" unique-identifier="DeathsHead" version="1.0"> <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf"> <dc:title>Death's Head</dc:title> <dc:creator opf:file-as="David Gunn" opf:role="aut">David Gunn</dc:creator> <dc:publisher>Transworld</dc:publisher> <dc:identifier id="DeathsHead" opf:scheme="isbn">9781407033952</dc:identifier>
|01-31-2014, 10:34 AM||#2|
Well trained by Cats
Join Date: Aug 2009
Location: (The original) Silicon Valley, USA
Device: Astak Pocket Pro, K4NT,Galaxy Tab 2
Moving to EPUB as this is not a Sigil question/problem
|01-31-2014, 11:13 AM||#3|
Join Date: Jul 2010
Device: PW2, Nexus7
In an ePub there is already a unique identifier in the OPF and the ISBN is also unique, so reader firmware should be able to detect different books even where the dc:title is the same.
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