View Full Version : producing ebooks for kindle vs. cybook?


hapax legomenon
12-04-2007, 05:16 PM
I know kindle supports mobipocket and so does cybook. I own a cybook and am self-publishing a creative commons erotic short story collection (which I'll be posting here in a few weeks).

Will mobipocket render exactly the same in both kindle and cybook? What are the differences (if any) in how kindle and cybook show mobipocket files?

I'm thinking mostly about navigation, headings and fonts. I'm guessing that images will be basically the same.

Would there be any reason to produce mobipocket versions for each device?

Thanks for your help.

Nate the great
12-04-2007, 06:10 PM
There's no reason to create multiple versions of a Mobipocket ebook. All the devices read the exact same format.

AnemicOak
12-04-2007, 06:23 PM
There's no reason to create multiple versions of a Mobipocket ebook. All the devices read the exact same format.

Yes they can read them, but I believe he's asking if they'll display the same on both devices or if there are tweaks to make them display better on a certain device.


I'm not sure, but I'd guess they would display virtually the same on both. It depends on how close the reader software for each device is. Don't know if we've got anyone on the forum yet that owns both a Cybook & a Kindle that could do a direct comparison.

Hadrien
12-04-2007, 06:27 PM
You can also post your work on Feedbooks: http://www.feedbooks.com

We'll add Mobipocket in the upcoming weeks and we already create custom PDF files on the fly and support the new ebook standard: epub.

hapax legomenon
12-04-2007, 06:39 PM
Thanks, Hadrien. Yes, I was planning to post it on feedbooks as well.

catsittingstill
12-04-2007, 08:31 PM
I know kindle supports mobipocket and so does cybook. I own a cybook and am self-publishing a creative commons erotic short story collection (which I'll be posting here in a few weeks).

Will mobipocket render exactly the same in both kindle and cybook? What are the differences (if any) in how kindle and cybook show mobipocket files?

I'm thinking mostly about navigation, headings and fonts. I'm guessing that images will be basically the same.

Would there be any reason to produce mobipocket versions for each device?

Thanks for your help.

Um. If I understand right, Kindle supports unsecured Mobipocket (I think the .azw format is just mobipocket with a new DRM, actually) so I would expect navigation and headings to be the same. Kindle has only two fonts, so that would probably not be the same. The eInk screens on Kindle and Sony are exactly the same (except the Sony uses a different control chip, but in terms of pixels wide and pixels high they are exactly the same). I think the Cybook Gen 3 uses the same screen as well, but I'm not sure about that.

wallcraft
12-04-2007, 10:59 PM
In general, a MOBI file should work on any device. The optimizations for a Cybook or a Kindle would be the same - primarily to use large images (and therefore in most cases JPEG images, with the JPEG option explicitly on in MobiPocket Creator or mobigen.exe). For short stories, a table of contents recognized as such by the Reader (rather than just in-lined HTML) would help too.

As catsittingstill pointed out, one difference is that the Kindle does not have selectable font types (only font sizes). However, that isn't usually a problem for document design. The two devices might convert images to fit the screen, and for 4 gray scales, differently - but I have not seen any reports on this issue. The Kindle does a pretty good job displaying color images.

tompe
12-08-2007, 10:05 AM
For short stories, a table of contents recognized as such by the Reader (rather than just in-lined HTML) would help too.


Is this working on the Kindle? On my Cybook I did not find any such functionality.

I have also been wondering if the Kindle have these small Cover images that the Cybook displays in it library views?

HarryT
12-08-2007, 10:46 AM
Is this working on the Kindle? On my Cybook I did not find any such functionality.


Tables of contents work just fine on the CyBook. While reading the book, click the centre button to display the menu, then select "Go To", and "Table of Contents".

Not all books have a TOC; for those which don't, this menu item will be greyed-out.

tompe
12-08-2007, 01:19 PM
Tables of contents work just fine on the CyBook. While reading the book, click the centre button to display the menu, then select "Go To", and "Table of Contents".

Not all books have a TOC; for those which don't, this menu item will be greyed-out.

Thanks for that information. It never occured to me to look in a sub menu for the table of content. I tested with a book without a TOC and there was no entry at all for table of content. And I confirmed that I could go to the TOC in the book generated by my Perl script (lit2mobi).

wallcraft
12-08-2007, 02:14 PM
Is this working on the Kindle? For TOC, the Kindle has a sub-menu similar to the "contents" menu in the Windows MobiPocket Reader (cover, TOC, ...), which also includes go to beginning, location or boookmark. The "beginning" is what the Windows version calls "start reading" and is not the 1st page but rather where the publisher wants you to start.

The iLiad has no way of bringing up the cover image (unless it is in-lined in the HTML), but it has a TOC icon (similar to FBReader's TOC icon) and a "start reading" icon. The start reading icon will be grayed out unless the publisher has included this location.

Hadrien
12-08-2007, 02:29 PM
For TOC, the Kindle has a sub-menu similar to the "contents" menu in the Windows MobiPocket Reader (cover, TOC, ...), which also includes go to beginning, location or boookmark. The "beginning" is what the Windows version calls "start reading" and is not the 1st page but rather where the publisher wants you to start.

The iLiad has no way of bringing up the cover image (unless it is in-lined in the HTML), but it has a TOC icon (similar to FBReader's TOC icon) and a "start reading" icon. The start reading icon will be grayed out unless the publisher has included this location.

Well... It might be better in this case to add the TOC in this menu, rather than adding a TOC entry that would redirect to an in-line HTML TOC.

The only problem that I have with this menu, is that I don't know how I can create sub-menus. For example instead of displaying Part I and right under Chapter I, it would be much better if Part I acted like a sub-menu with its chapters inside.

wallcraft
12-08-2007, 02:32 PM
I have also been wondering if the Kindle have these small Cover images that the Cybook displays in it library views? No. The Kindle's library view is similar to the title and author columns of the Windows MobiPocket Reader library view.

I assumed the Cybook's images were thunbnails based on the cover images. That is what the Windows MobiPocket Reader seems to be displaying in its library view when you select an e-book.

HarryT
12-08-2007, 02:43 PM
I assumed the Cybook's images were thunbnails based on the cover images.

That's exactly what they are. When the library first "catalogs" the book, it generates a thumbnail file. If there is a cover image it uses that, otherwise it creates one which shows the book title.

tompe
12-08-2007, 05:36 PM
That's exactly what they are. When the library first "catalogs" the book, it generates a thumbnail file. If there is a cover image it uses that, otherwise it creates one which shows the book title.

There is sometimes a small image packed in the mobi file that probably could be used if it is there. Otherwise it seems that it takes the first image record and rescale that and use as a thumbnail. If somebody happens to know exactly how this works and if there is relevant information in the MOBI header for this process I am very interested in this information. I want to make my conversion tools as correct as possible.

tompe
12-08-2007, 05:39 PM
The only problem that I have with this menu, is that I don't know how I can create sub-menus. For example instead of displaying Part I and right under Chapter I, it would be much better if Part I acted like a sub-menu with its chapters inside.

Since the links just jumps to file positions it should be possible to just place the sub menues after the the menu and have a pagebreak between them. If mobigen can do this I do not know but it might work with links in the table of content file.

DaleDe
12-08-2007, 05:52 PM
Since the links just jumps to file positions it should be possible to just place the sub menues after the the menu and have a pagebreak between them. If mobigen can do this I do not know but it might work with links in the table of content file.

MobiCreator has specific support for nested toc's. Check the Creator software an emulate the TOC file it generates to learn how this is done.

Dale

tompe
12-08-2007, 06:19 PM
MobiCreator has specific support for nested toc's. Check the Creator software an emulate the TOC file it generates to learn how this is done.


Since I do not use Windows I cannot do that :)

But I tested to generate a file just adding a sub TOC after the first and referencing it using the "id" attribute and using my Perl script lit2mobi (http://www.ida.liu.se/~tompe/mobiperl/mobiperl-0.0.5.tar) to convert to mobi format and it worked OK on my Cybook. You get the sub TOCs on different pages that are in the end of the book but that is a feature since it is sometimes faster to just go some pages forward than choose someting in the TOC.