Updating ipod on different computer

However, that workaround is only possible when using a USB connection and sending with calibre.

I encourage you to contact Amazon and ask them to fix this bug.The bug in Amazon’s software is that when you put a MOBI file on a Kindle, unless the file is marked as a Personal document, Amazon assumes you bought the book from it and tries to download the cover thumbnail for it from its servers.In order to convert a collection of HTML files in a specific order, you have to create a table of contents file.That is, another HTML file that contains links to all the other files in the desired order. This means that if file links to and and D.html, but also links to D.html, then the files will be in the order A.html, B.html, D.html, In other words, Kindle’s only display covers for books marked as Personal Documents or books bought directly from Amazon.

If you send a MOBI file to an e-ink Kindle with calibre using a USB connection, calibre works around this Amazon bug by uploading a cover thumbnail itself.This means, that if you want to send a calibre produced EPUB to an online store that uses an EPUB validity checker, you have to make sure that the EPUB is valid yourself, calibre will not do it for you – in other words you must feed calibre valid XHTML CSS as the input documents.Once you send us the output for a particular operating system, support for the device in that operating system will appear in the next release of calibre.calibre tries hard to ensure that EPUBs it produces actually work as intended on a wide variety of devices, a goal that is incompatible with producing valid EPUBs, and one that is far more important to the vast majority of its users.If you need a tool that always produces valid EPUBs, calibre is not for you.Note that doing this will mean that the generated MOBI will show up under personal documents instead of Books on the Kindle Fire and Amazon whispersync will not work, but the covers will.