Quote:
Originally Posted by jhowell
In those steps I didn't see anything that would actually apply the metadata you changed in the calibre database to the KFX format copy of the book. That only occurs when you use certain specific functions in calibre: "Embed metadata", "Save to disk" (with the "Update metadata in saved copies" option enabled), or "Send to device".
Unless you did one of those things the book in KFX format will retain its original metadata.
KFX format enables extra features and so I recommend it for the best reading experience on Kindle devices. But it is highly processed and very proprietary to Amazon.
For archival of books I recommend KF8 (azw3) format. That is the closest to what was originally provided to Amazon by the publisher and is more future-proof than KFX.
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Thanks again, I'll keep playing around. Just to pick your brain one last time, why is AZW more future-proof than KFX, considering KFX is the newer format?