ePub to new mobi problem
I upgraded my Kindle3 to read azw3 ebooks some time ago, and have some Amazon ebooks which show as azw3 files and work successfully. I have also converted ebooks I designed myself from ePub to azw3, and they have worked on the Kindle3.
This morning I converted an ePub book I designed and produced myself to new mobi with calibre, but when I tried to read it on the Kindle I got a message that it could not be opened, and that if it was bought from Amazon I should download it again.
What have I done wrong?