Thread: Dealing with Kindle ebooks in calibre
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Old 10-24-2025, 10:14 AM   #1277
Freshenstein
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Freshenstein began at the beginning.
 
Posts: 11
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Join Date: Dec 2015
Device: Kobo Libra 2
Quote:
Originally Posted by Sirtel View Post
That's because with K4PC 2.8.0 it's no longer as simple as it was.

Read this:
https://techy-notes.com/blog/dedrm-v10-0-14-tutorial
I've gotten this to work with dozens of books but I got this message with one specific book that was released today. When I copy the file into calibre, instead of the normal .kfx format, it shows as .azw format so that may have something to do with it. I can read the book just fine in Kindle 4 PC 2.8.0 (70980) so it's not a corrupted file.

Has anyone else gotten this error when running the script?

Code:
BookOpen error 14 Missing magic bytes
Invalid book format, maybe KF8/MOBI?
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