ePub to new mobi problem

[AlexBell]

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?

[kovidgoyal]

Dont use new mobi, use joint mobi or preferably azw3. IIRC some kindles barf when they come across KF8 with a .mobi extension.

[AlexBell]

Thanks, Kovid

I don't remember seeing joint mobi as a conversion option, but I'll look at it again.

The publisher I work for is not at all keen on publishing her books in azw3, so I thought I'd try providing a mobi version which (so far as I know) contains both the mobi and azw3 - like Kindlegen

[mbovenka]

Originally Posted by AlexBell

I don't remember seeing joint mobi as a conversion option, but I'll look at it again.

Preferences -> Conversion -> Output options -> MOBI output -> MOBI file type 'both'

This will create a Kindlegen-like mobi with both MOBI6 and KF8 parts.

[AlexBell]

Thanks, mbovenka. It works well. The ancillary file on my upgraded Kindle3 is a han file, so it must have read the azw3 part.

I've just realised that if I want to test an old style mobi on my Kindle3 I'll have to do an old conversion, then delete that file and its mbp file and put the both mobi file on the reader.