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jhowell · 03-18-2019, 08:39 AM

The issue is not so much specific devices, but the various file formats that different Kindle devices use. The four main ones are MOBI7, KF8/AZW3, KCR/AZK, and KFX. There is different e-book rendering software for each of these formats with minor variations between devices and firmware revisions.

Straying too far out of the mainstream of e-book coding will lead to problems in one or more of these formats, which you won't be aware of unless you test extensively. The end result will be bad reviews and kindle quality notices from Amazon.

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Added: Media queries are not supported in KFX format (enhanced typesetting). They are evaluated during conversion from the source format and do not carry through to the device that displays the book.

03-18-2019, 08:39 AM	#17
jhowell Grand Sorcerer Posts: 7,091 Karma: 91592869 Join Date: Nov 2011 Location: Charlottesville, VA Device: Kindles	The issue is not so much specific devices, but the various file formats that different Kindle devices use. The four main ones are MOBI7, KF8/AZW3, KCR/AZK, and KFX. There is different e-book rendering software for each of these formats with minor variations between devices and firmware revisions. Straying too far out of the mainstream of e-book coding will lead to problems in one or more of these formats, which you won't be aware of unless you test extensively. The end result will be bad reviews and kindle quality notices from Amazon. ---- Added: Media queries are not supported in KFX format (enhanced typesetting). They are evaluated during conversion from the source format and do not carry through to the device that displays the book. Last edited by jhowell; 03-18-2019 at 08:55 AM.