Quote:
Originally Posted by Notjohn
Just for fun, I used Kindleunpack to deconstruct a book of mine, converted on the KDP platform for sale on Amazon. I upload an epub to the KDP, since I need the epub for the other retailers, and since it happens to be the easiest way to upload an entire book in a single package, rather than as a zip file.
Kindleunpack produced two files, one in a folder called Mobi7, the other in a folder called Mobi8 which I take to be the equivalent of KF8 format (for the Fire and other newer devices and apps). To my astonishment, the file in the Mobi8 folder had the extension *.epub.
Is Amazon actually delivering an epub to customers who are reading on the Fire and related devices/apps?
(The Mobi7 folder contained a much smaller file with the extension *.htm, plus an OPF and an NCX file.)
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You can read about MOBI, KF8 in our wiki. A file built by KindleGen includes 3 formats. The mobi7, KF8, and the original submitted ePub. KindleStrip will remove the source ePub to reduce the size and KindleUnpack will split the 3 parts into separate files and if desired it can further break them down in their source equivalent parts.
Amazon does not deliver what you make with KindleGen but may deliver either one of the other two or both of them in a file depending on what device or devices you own.
Amazon KF8 is really a ePub content inside a mobi wrapper (container) which is explained in the wiki. Amazon never delivers the epub for use by the end user.
Dale