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Comment by innocenat | Hacker News Reader

MOBI is so outdated and lack many newer features on Kindle. So much so that Amazon is discontinuing sending mobi via email later this year.

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Wait what? Is that just mobi? Or can other files be used. My USB port broke years ago so I soldered on a qi charger and now just send books over WiFi.

You can still use other formats on your Kindle. That restriction is for publishing new books on Amazon store.

If you want to publish a new book on Amazon, you have to use EPUB instead of MOBI. That's the only change afaik.

No, this applied to Send to Kindle service too. Announced a few days ago.

https://www.amazon.com/gp/help/customer/display.html?nodeId=...

They support sending EPUB now.

That's too bad, the usb is broken on my old kindle, the experimental browser in it is too old to use to connect to the Calibre server feature and the only option I had left was sending mobi by mail. (It does not read epub) Can you think of any other solution ?

You'll be able to email Epub instead. You can already do it now actually if you send it as a ".zip" or ".PNG" but they reject ".Epub" outright. But they recently updated a support article saying send to Kindle will support Epub soon. Amazon converts it using their tools to their format that's right for the device.

Yeah the PNG trick works great. So great I don't understand they never made it official before

Wait, do all Kindle models support epub reading ?

No none of them do. When you email an Epub file Amazon converts it using KindleGen to whatever your device supports.

Oh I did not know that thanks

What are some of those missing new features when you use MOBI?

1. Can't choose custom fonts 2. Can't configure boldness

Maybe a few thing more, but these two are what put me off of using MOBI. (I believe there's a hack for jailbroken kindle to fix this)

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