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Old 02-13-2022, 12:06 PM   #73
stefano.sb
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Posts: 103
Karma: 1000
Join Date: May 2013
Device: Kindle Paperwhite
Quote:
Originally Posted by jhowell View Post
I took a look at the MOBI files. According to the metadata the non-calibre file was produced using Mobipocket Creator version 4.2 on 2010-03-05.

The reason that file does not work correctly is that the cover image it contains is only 150 x 236 pixels. This is too small for the Kindle to produce a proper thumbnail image of the cover. (I do not know the actual minimum cover size needed. I suspect it varies by Kindle model and firmware.)

The cover in the working MOBI file is 317 x 500 pixels which is large enough to work properly.
Thanks jhowell for the answer. The strange thing is that using the no Calibre ebook there is only one situation the thumbnail cover is show by my Kindle. See attached images.

But... it's ok the problem is the cover size

Stefano
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