MobileRead Forums - View Single Post - KindleUnpack (MobiUnpack): Extracts text, images and metadata from Kindle/Mobi files

KevinH · 07-12-2014, 10:03 AM

Hi Paul and DiapDealer ( and anyone else with Kindle ebook collections ),

Do you own an Amazon ebook that uses EXTH 508, 517 or 522? Do you know who reverse engineered those EXTH values?

One quick thing to try is to cd to your My Kindle Content directory and run DumpMobiHeader_v016 (or later) on the *.azw ebook files. It will dump the EXTH even if the ebook is DRM'd since the headers themselves are not encrypted.

I then redirect all the output to a big text file and then use grep to find those tag values.

I would love to know if any of those supposed file-as EXTH values are ever set. If do, I will try to grab a sample of that book to see if I can figure out how they were set and why?

Thanks,

KevinH

07-12-2014, 10:03 AM	#902
KevinH Sigil Developer Posts: 8,948 Karma: 6361444 Join Date: Nov 2009 Device: many	Hi Paul and DiapDealer ( and anyone else with Kindle ebook collections ), Do you own an Amazon ebook that uses EXTH 508, 517 or 522? Do you know who reverse engineered those EXTH values? One quick thing to try is to cd to your My Kindle Content directory and run DumpMobiHeader_v016 (or later) on the *.azw ebook files. It will dump the EXTH even if the ebook is DRM'd since the headers themselves are not encrypted. I then redirect all the output to a big text file and then use grep to find those tag values. I would love to know if any of those supposed file-as EXTH values are ever set. If do, I will try to grab a sample of that book to see if I can figure out how they were set and why? Thanks, KevinH