Quote:
Originally Posted by KevinH
You and I will disagree on that. An epub3 with audio and/or video is a real ebook and works with decent epub3 ereaders which now are common and are easy to find.
Readium, Thorium, iBooks, etc, to name just a few.
IMHO, you are too fixated in old epub2. The world has moved on from that.
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It's a real epub3. But not a book as we know it. Humpty Dumpty.
It's not about epub2 vs epub3. It's about what constitutes an ebook.
We've had ebooks
AND multimedia for about 40 years. Using epub3 as the spec or tool to make a multimedia / interactive title doesn't mean it's an ebook.
PDFs, Fixed layout Kindle, Fixed layout epub3 and multimedia (built wiith pure epub3 or any other way) are not ebooks.
Web pages are also not ebooks, though you can display an ebook or a PDF in a browser. I use Okular for PDFs and sometimes ebooks. I only use the browser for web pages.
There are loads of programs and apps that can render or play things in totally different categories.
Readium, Thorium, iBooks, etc can display things that are not ebooks. So can Pocketbook app and it has aspects of PDF reading/viewing better than Xodo, thought of as a PDF viewer. Xodo is also and image viewer, but that doesn't mean those images are PDFs.
Epub3 certainly has some improved semantics for real ebooks that are read by TTS, but not everything you can create with epub3 is a real ebook.
See also HTML. Not everything made with HTML is a webpage.
Java can be used to make a desktop program or be part of the server side of a website.
The more powerful a tool the more things can be made.
Postscript is useful, but not all postscript is in PDFs and a PDF might have no postscript.
PDFs have been extended with javascript to be used as interactive forms which is stupid compared to proper website. A stupid decision and no use for the original purpose. I have Javascript disabled by default in all PDF viewers for about 20+ years, and PDF viewing disabled in browsers since it was enabled.
Sure, do interactive multimedia using epub3. But call it what it is, Interactive Multimedia. A thing that has existed a decade or more before mobi or the precursor of epub2 (
1998-1999 OEBPS). The epub3 is version 3 of OEBPS and only became a multimedia authoring tool because W3C took over epub2. A natural thing for them to do.