Thread: 32gb Storage - Why
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Old 08-17-2019, 06:03 PM   #13
lumpynose
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Join Date: Jul 2012
Device: Palm Pilot M105
Quote:
Originally Posted by ilovejedd View Post
Last I know, Calibre uses DOC (PalmDOC) compression for MOBI/AZW3. huffdic results in smaller files but it takes much, much longer than PalmDOC to create.
Argh, I didn't know about the kindlegen -c flags. The last MOBI book I uploaded with no -c flags is 2,173 kb, with -c2 it's 1,480 kb, and the epub is 726 kb. The MOBIs I created are dual MOBIs but without the source (-dont_append_source flag used) so that makes it difficult to compare them since dual MOBI contains both the AZW3 and the old MOBI7.

I'm guessing that Project Gutenberg makes their kindle books without compression; the difference in sizes is noticeable there. Presumably theirs are dual MOBI since they don't offer AZW3 downloads.
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