07-29-2021, 10:03 AM | #1 |
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Kindle 1.7 AZW -> AZW3 in Calibre 4.2.1 but -> AZW in Calibre 5.23
I have Kindle 1.7 on machine A Win7 with Calibre 4.2.1, DeDRM 7.2.1.
I download a book and import it into Calibre. It shows up as AZW3. I can convert it to ePUB. On machine B I have Calibre 5.23.0, DeDRM 7.2.1. I copy the Kindle files to machine B Win10. I import it into Calibre. It shows up as AZW. I cannot convert it to ePUB because Calibre tells me it is DRM protected. I am mystified as to why 5.23.0 does not recognise this as AZW 3 and thus DeDRM has not worked. |
07-29-2021, 10:55 AM | #2 |
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Kindle for PC/Mac uses a .azw extension for all files regardless of format. After DRM is removed the extension is changed to the correct one based on the actual format of the book. If DRM removal fails the .azw extension remains.
Assistance with DRM removal is not allowed on MobileRead. Ask for help at either Apprentice Alf's Blog or Apprentice Harper's GitHub. |
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07-29-2021, 01:58 PM | #3 |
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Thanks, that makes sense. It seems the same plug in works in Calibre 4.2.1 but not in 5.32.0. Oh the fun I have had trying to get Calibre and Kindle working together with DRM removal on my Win10 machine. It is curious though that the same code fails in the newer Calibre - that is why I hypothesised it was a Calibre problem.
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07-29-2021, 02:09 PM | #4 | |
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Quote:
You can go to https://apprenticealf.wordpress.com and ask for help in the comments. Last edited by JSWolf; 07-29-2021 at 03:28 PM. |
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07-29-2021, 03:15 PM | #5 | |
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Yep, it's user error. The keywords here are I copy the Kindle files to machine B Win10. That's certainly not what you should do. |
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07-29-2021, 08:33 PM | #6 |
the rook, bossing Never.
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If you buy an ebook for a specific Kindle and use Amazon's Download to PC (for that Kindle), then afterwards the files can be copied to any computer. Though they have DRM keyed to the selected physical Kindle, and without Alf can't convert.
But if you are buying an Amazon ebook for a Kindle app, then copying elsewhere is pointless except as a backup. Alf only works on the one computer that has the Kindle app/program. Buy a cheap physical kindle and always select Download to PC (includes Macs, iOS. Linux and Android) and then select that physical kindle, not any registered App. Last edited by Quoth; 07-29-2021 at 08:35 PM. |
07-30-2021, 03:18 AM | #7 |
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Thanks for the pointers. I suspect the files are signed for my Kindle app on my Win7 machine and thus useless elsewhere.
I bought the book and I do not intend to pirate it, just read it on my new Kobo Clara HD. The rules of this group are a bit strange but I understand the caution. Giving more money to Amazon for Kindle hardware seems like putting salt on the wound, but thanks for the alternative. I would buy from Kobo but they do not have the book. I shall pursue the quest at Alf's however I read there and elsewhere first and got thoroughly confused. It seems there is no solution for KFX at the moment with the current versions of reader and plugin. Thanks again for the help. It is why I like forums. Last edited by Tattvadarzin; 07-30-2021 at 03:20 AM. |
07-30-2021, 04:35 AM | #8 | |
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That's why I said to ask in the comments section of Alf's blog. There the answer can be given. |
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07-30-2021, 07:16 AM | #9 | |
the rook, bossing Never.
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I've always downloaded to PC for a physical Kindle, which so far avoids KFX with PW3. I have also a KK3 which does manage KF8, though doesn't render quite the same and a DXG which only gets old Mobi/KF7. I suspect a KK3 might be the oldest that supports the KF8, which IMO is the best download format from Amazon. Amazon adds DRM to KFX even when a publisher requests DRM free. |
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07-30-2021, 09:16 AM | #10 | ||
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Quote:
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07-30-2021, 11:10 AM | #11 |
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I solved my problem so I can now abandon Win 7: Calibre and Kindle.
I downgraded Kindle to 1.17 in Win 10 after removing the key HKEY_CURRENT_USER\SOFTWARE\Amazon and reregistering. Thanks to all. |
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