YJF YJR format

golcarlily · 02-01-2016, 05:37 PM

Just purchsed a book for my kindle paperwhite. When I connect to Calibre it does not appear in the 'on device' list so I cannot add it to the library.

Using win file explorer shows YJF and YJR files instead of expected MOBI or AZW

Any ideas ?

Cinisajoy · 02-01-2016, 06:31 PM

Which windows?
Did you look in your documents. It will be in the kindle file.
Also how did you send it to the computer?

Or did you send it straight to the paperwhite?

jhowell · 02-01-2016, 07:52 PM

YJF and YJR are auxiliary files associated with Amazon's KFX format. (YJ refers to Yellow Jersey, the code name for the project.)

Calibre cannot handle that format, but you can use the Manage Your Content and Devices page on Amazon's web site to download the book in a more usable format.

golcarlily · 02-01-2016, 07:53 PM

Quote:

Originally Posted by Cinisajoy

Which windows?
Did you look in your documents. It will be in the kindle file.
Also how did you send it to the computer?

Or did you send it straight to the paperwhite?

puechased from Kindle store and downloaded to device.

Is present and working on device itself but doesn't appear when paperwhite connected to calibre and 'DEVICE' selcted, (All other ebooks on the device are listed),so cannot select the book to transfer to calibre library.

cvkemp · 02-01-2016, 07:59 PM

Yes you can by going to Amazon.com and logging in the going to manage your content and devices then to your content tab then select the book and download it to your computer in another format.

Cinisajoy · 02-01-2016, 08:35 PM

In that case, go back to Amazon and manage my content. Use the transfer via computer.

eschwartz · 02-01-2016, 09:01 PM

If those are KFX auxiliary files, then calibre should see the KFX itself.

(calibre will display an error message explaining that KFX is a "virtual" book and to download the book into calibre you should go to http://amzn.com/myk.)

golcarlily · 02-02-2016, 04:49 PM

Downloaded from Amazon as AZW3 file. problem solved

Thanks to all who helped

02-01-2016, 05:37 PM	#1
golcarlily Junior Member Posts: 6 Karma: 10 Join Date: Aug 2008 Device: Kindle Paperwhite	YJF YJR format Just purchsed a book for my kindle paperwhite. When I connect to Calibre it does not appear in the 'on device' list so I cannot add it to the library. Using win file explorer shows YJF and YJR files instead of expected MOBI or AZW Any ideas ?

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02-01-2016, 06:31 PM	#2
Cinisajoy Just a Yellow Smiley. Posts: 19,161 Karma: 83862859 Join Date: Jul 2015 Location: Texas Device: K4, K5, fire, kobo, galaxy	Which windows? Did you look in your documents. It will be in the kindle file. Also how did you send it to the computer? Or did you send it straight to the paperwhite?

02-01-2016, 07:52 PM	#3
jhowell Grand Sorcerer Posts: 7,044 Karma: 91577715 Join Date: Nov 2011 Location: Charlottesville, VA Device: Kindles	YJF and YJR are auxiliary files associated with Amazon's KFX format. (YJ refers to Yellow Jersey, the code name for the project.) Calibre cannot handle that format, but you can use the Manage Your Content and Devices page on Amazon's web site to download the book in a more usable format.

02-01-2016, 07:59 PM	#5
cvkemp Loving life Posts: 1,430 Karma: 7991496 Join Date: Mar 2009 Location: Hot Springs Village, Arkansas Device: PaperWhite 6 SE, Fire HD8	Yes you can by going to Amazon.com and logging in the going to manage your content and devices then to your content tab then select the book and download it to your computer in another format.

02-01-2016, 08:35 PM	#6
Cinisajoy Just a Yellow Smiley. Posts: 19,161 Karma: 83862859 Join Date: Jul 2015 Location: Texas Device: K4, K5, fire, kobo, galaxy	In that case, go back to Amazon and manage my content. Use the transfer via computer.

02-01-2016, 09:01 PM	#7
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)	If those are KFX auxiliary files, then calibre should see the KFX itself. (calibre will display an error message explaining that KFX is a "virtual" book and to download the book into calibre you should go to http://amzn.com/myk.)

02-02-2016, 04:49 PM	#8
golcarlily Junior Member Posts: 6 Karma: 10 Join Date: Aug 2008 Device: Kindle Paperwhite	Downloaded from Amazon as AZW3 file. problem solved Thanks to all who helped

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