Thread: Firmware Update Kindle Collection Manager for Windows
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Old 08-18-2010, 09:52 PM   #38
Noggin (1998-2011)
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Originally Posted by NiLuJe View Post

It's the SHA1 sum of the full filepath of the book. (ie. /mnt/us/documents/

AFAIR, it's been discussed before in the Kindle Dev & Calibre sections .

On the other hand, Amazon books use something based on their ASIN (which I guess stands for Amazon Serial Identification Number).
As always, NiLuJe comes to my rescue. I'd tried sha1 (since it's 40 characters) on file name and name without suffix, but never thought to try the full path.

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