AZW3 save bug

valkyrieboy81 · 10-19-2014, 05:03 AM

When saving AZW3 to a disk, the correct file extension for kindle is AZW, currently you have to manually remove the 3 from the end to get Kindle to read these files.

kovidgoyal · 10-19-2014, 06:24 AM

No Kindles are perfectly capable of reading azw3, in fact azw and azw3 are different formats.

eschwartz · 10-19-2014, 09:13 PM

AZW is a renamed MOBI, Amazon will change the file extension when a book downloads from their server (and probably has their DRM).
AZW3 is a new, Amazon-developed format which is essentially an EPUB in a binary Palm Database wrapper.

Newer Kindles can read either format, but you may have to tell calibre that yours can. By default calibre's Kindle Touch/PW1/PW2/Voyage/Touch 2 driver is backwards compatible with the Kindle Touch's earllier firmware releases that didn't support AZW3 (but later updates fixed that).

10-19-2014, 05:03 AM	#1
valkyrieboy81 Junior Member Posts: 2 Karma: 10 Join Date: Oct 2014 Device: Kinddle (all) / Nook	AZW3 save bug When saving AZW3 to a disk, the correct file extension for kindle is AZW, currently you have to manually remove the 3 from the end to get Kindle to read these files.

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10-19-2014, 06:24 AM	#2
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No Kindles are perfectly capable of reading azw3, in fact azw and azw3 are different formats.

10-19-2014, 09:13 PM	#3
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	AZW is a renamed MOBI, Amazon will change the file extension when a book downloads from their server (and probably has their DRM). AZW3 is a new, Amazon-developed format which is essentially an EPUB in a binary Palm Database wrapper. Newer Kindles can read either format, but you may have to tell calibre that yours can. By default calibre's Kindle Touch/PW1/PW2/Voyage/Touch 2 driver is backwards compatible with the Kindle Touch's earllier firmware releases that didn't support AZW3 (but later updates fixed that).

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