Re: [docbook-apps] Conceptual Questions and Customizations Regarding EPUB2 Stylesheets

["Bob Stayton" <bobs@sagehill.net>]

Hi,
I was concerned about epub2 readers when writing the epub3 stylesheets.  The 
EPUB3 standard includes provisions for backwards compatibility with epub2 
readers, such as including the .ncx file and various metadata items.  The 
DocBook epub3 stylesheet tries to use all those features, so most epub2 
readers can open and browse most output from DocBook's epub3 stylesheet.

However, if you use videoobject or audioobject in your DocBook source, those 
generate epub3-specific output, and would not be understood by epub2 
readers.  I've found that most such readers just ignore that output and 
still display the rest.

BTW, according to this article, Kobo has announced full support for Epub3 by 
third quarter 2013:

  http://www.digitalbookworld.com/2012/kobo-to-fully-support-epub-3-by-third-quarter-2013/

The article also says that "Hachette announced that by March 2013 all of its 
new books would be in EPUB 3 format."

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

--------------------------------------------------
From: "Christian Brugeron" <christian.brugeron@gmail.com>
Sent: Tuesday, April 09, 2013 6:58 AM
To: <docbook-apps@lists.oasis-open.org>
Cc: "Thomas Schraitle" <tom_schr@web.de>; "Carlos Araya" 
<carlos.araya@gmail.com>
Subject: Re: [docbook-apps] Conceptual Questions and Customizations 
Regarding EPUB2 Stylesheets

> In my experience with Hachette books, the kobo readers do not display the 
> EPUB3 files (mybe not docbook's, but generaly speaking)
>
> So we got back to epub2
>
> I have the IDPF test files that I run from time to time on the IPAD, the 
> closest EPUB3 compatible mobile reader, and a lot files are rejected 
> ("unknown format.....").
>
> My 2 cents
>
> If you want you can send me some files, I will test them on IPAD and MOBO.
>
>
> cb
>
> Le 9 avr. 2013 à 15:00, Carlos Araya a écrit :
>
> > Christian
> >
> > How do you define read fully?
> >
> > How do you ensure forward compatibility so that the readers that support 
> > epub3 will get a similar reading experience?
> >
> > Sent from my iPad
> >
> > On Apr 9, 2013, at 5:30 AM, Christian Brugeron 
> > <christian.brugeron@gmail.com> wrote:
> >
> > > EPUB3 is not read fully by any player on the market.
> > >
> > > Better use EPUB2 for then moment.
> > >
> > > cb
> > >
> > > Le 9 avr. 2013 à 14:23, Thomas Schraitle a écrit :
> > >
> > > > Hi Carlos,
> > > >
> > > > On Tue, 9 Apr 2013 05:10:52 -0700
> > > > Carlos Araya <carlos.araya@gmail.com> wrote:
> > > >
> > > > > Is there any reason why not to use the epub3 stylesheets?
> > > >
> > > > Thanks for your answer Carlos.
> > > >
> > > > Well, I'm not sure if EPUB3 is that widespread than EPUB2. Older
> > > > EPUB readers does probably not support EPUB3, so I was a bit concerned
> > > > about compatibility.
> > > >
> > > >
> > > > > As far as I can tell epub2 stylesheets are not being actively
> > > > > maintained. Bob has done an awesome job with epub3 and thy should be
> > > > > readable by older devices out of the box.
> > > >
> > > > Probably I should move to EPUB3 anyway. :)
> > > >
> > > > Thanks!
> > > >
> > > > --
> > > > Gruß/Regards,
> > > >  Thomas Schraitle
> > > >
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>
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