MobileRead Forums - View Single Post - To CBZ, or not to CBZ: that is the question

Freeshadow · 01-23-2024, 10:02 PM

I had working epub on even so small and old reader as an bebook mini so memsize isn't your problem; either is decomp speed ;the problem is that zopfli based tools as I tested them, don't allow to add unshrinked files to the archive (meta.inf in epubs) thus you can't CREATE epubs with zopfli tools. you have to take a traditionally created zip or other file containing deflate stringsand reshrink it with: advzip -z -4 -i 1000 $name.epub.
this operates only with the deflated sections WITHIN a file leaving the rest of a file (ANY file) untouched, and then all works fine.

01-23-2024, 10:02 PM	#25
Freeshadow temp. out of service Posts: 2,815 Karma: 24285242 Join Date: May 2010 Location: Duisburg (DE) Device: PB 623	I had working epub on even so small and old reader as an bebook mini so memsize isn't your problem; either is decomp speed ;the problem is that zopfli based tools as I tested them, don't allow to add unshrinked files to the archive (meta.inf in epubs) thus you can't CREATE epubs with zopfli tools. you have to take a traditionally created zip or other file containing deflate stringsand reshrink it with: advzip -z -4 -i 1000 $name.epub. this operates only with the deflated sections WITHIN a file leaving the rest of a file (ANY file) untouched, and then all works fine. Last edited by Freeshadow; 01-23-2024 at 10:04 PM.