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Old 12-07-2012, 02:52 AM   #10
dgatwood
Curmudgeon
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Posts: 304
Karma: 1028382
Join Date: Jan 2012
Device: iPad, iPhone, Nook Simple Touch
Quote:
Originally Posted by DaleDe View Post
MOBI is actually based on the Open eBook format. Amazon purchased Mobipocket to gain access to this format. See our wiki for more details.
I'm fairly certain that's not correct. Although the HTML subset that MOBI uses is similar to that of the Open eBook Format, the Open eBook Format (OEF) itself is similar to EPUB in that it is basically a ZIP file. By contrast, MOBI files are a rather bizarre file format that looks like a slightly modified PalmDOC database with HTML data split across a series of records (or a compressed version thereof). It's a really nasty format to work with under the hood.

Note that if you build a MOBI file using kindlegen from an EPUB book, you can unzip it because it does happen to contain a ZIP file, but that ZIP file just contains the original EPUB contents, not the reduced form that the Kindle hardware actually reads.


Quote:
Originally Posted by DaleDe View Post
Today KF8 is the new Amazon standard and it will based on ePub although the resulting file is not compatible. Most of the ePub features are available to an eBook publisher for the KF8 format. MOBI is being phased out of Amazon. Read about KF8 in our wiki.
Careful there. KF8 is not based on EPUB. KF8 uses an HTML and CSS subset that is similar to that of EPUB, but AFAIK, the file format is still a bizarre mess based on PalmDoc.
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