MobileRead Forums - View Single Post - Anyone know how to find a specific book cover in /system/thumbnails?

shamanNS · 04-15-2024, 05:42 AM

Those numbers are values of book's ASIN that Calibre generated and filled out.
You would need to use a computer to find out what value is used for that particular book file.

I'm not sure if Calibre itself offers a built-in way of accessing that metadata field value (perhaps it would populate the "Ids" section with "mobi-asin" identifier on book import??) but something like MobiMetaEditor should get that job done:

https://www.mobileread.com/forums/sh...98&postcount=1

When you have the ASIN value you can just do a search inside "thumbnails" folder. The new cover image file must use that exact filename.

04-15-2024, 05:42 AM	#2
shamanNS Guru Posts: 928 Karma: 10500004 Join Date: Feb 2010 Location: Serbia Device: Kindle PW5, Kobo Libra 2, Kindle PW1	Those numbers are values of book's ASIN that Calibre generated and filled out. You would need to use a computer to find out what value is used for that particular book file. I'm not sure if Calibre itself offers a built-in way of accessing that metadata field value (perhaps it would populate the "Ids" section with "mobi-asin" identifier on book import??) but something like MobiMetaEditor should get that job done: https://www.mobileread.com/forums/sh...98&postcount=1 When you have the ASIN value you can just do a search inside "thumbnails" folder. The new cover image file must use that exact filename. Last edited by shamanNS; 04-15-2024 at 05:47 AM.