Thread: Recently learned to run "Extract ISBN" before "Download Metadata". Do U do that too?
View Single Post
Old 08-08-2020, 02:43 PM   #11
droopy
Guru
droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.droopy ought to be getting tired of karma fortunes by now.
 
Posts: 834
Karma: 2912460
Join Date: Apr 2009
Device: Kobo Forma
Quote:
Originally Posted by theducks View Post
An ISBN 10 has a MOD11 check digit at the end. Calibre used (waaaay back when) to turn that field Red if there was an error. been so long (almost 10Y) , since I used that, I am not sure

ISBN13 is a standard EAN13 check algorithm
I'm processing a lot of my books now and I did find a typo. The ISBN in the book is valid, but it's an ISBN for another work of the author. So I had to manually search for the correct ISBN.
droopy is offline   Reply With Quote