Thread: Metadata Source Plugin, advice needed
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Old 04-02-2021, 08:46 AM   #14
davidfor
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Quote:
Originally Posted by Boilerplate4U View Post
Yes of course, but try to convince all the publishers that don't stick to the standard. Most of the epub I've checked so far omits the scheme type, that's the sad reality.

So one solution is to add an option to use ISBN when type is undefined. What do you think?
That is my experience as well. But, most don't have the ISBN at all. If they have an identifier at all, it is usually a UUID. When the do have ISBNs, they appear to be correctly identified according to the standards.

And I did do a quick check of 20 or so epubs that I have purchased. Only three of four had the ISBN and they had it correctly identified by the schema. The rest either had a UUID, or nothing at all.
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