Quote:
Originally Posted by HarryT
I am pretty familiar with the specs on the IDPF site. Could you point out which part of the spec "specifically allows for developers to do nonstandard things to Epub files and still validate"? I really don't recall having come across this statement in my reading of the spec.
Thanks.
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Google the words Epub spec island and do some reading. If you jump around based on the search word island you'll see that Epub allows for non-standard features.
BTW, this is going away in Epub3. But it's still valid for Epub 2ish.
So as you can see, Epub was basically designed to introduce incompatibilities. And thus as far as the consumer is concerned there is no standard Epub format.