Thread: Why can't Calibre preserve ISBN-10 numbers?
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Old 10-26-2013, 04:04 PM   #1
MelBr
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Why can't Calibre preserve ISBN-10 numbers?
This has been bugging me for a white: Calibre removes/destroys ISBN-10 numbers for some reason after you download metadata.

For example, input an ISBN and as ISBN-10 and then fetch metadata. It will be replaced by ISBN-13 number and ISBN-10 will disappear forever. Why is that? Why can't Calibre preserve what the user has entered before? It's preserving all kinds of crap inside the IDs filed (URI, all kinds of useless URLs etc) but is erasing ISBNs.

Why doesn't it recognize ISBN-10 and ISBN-13 as fields since those are used on almost every book site out there (Amazon, B&N, iTunes etc)? It only recognizes "isbn:" field and fills it in with ISBN-13 numbers.

Anyone have some solutions to this problem?
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