MobileRead Forums - View Single Post - The advisability of stripping DRM

Timboli · 10-18-2016, 10:17 PM

Formats are an issue for some Kindles, and each time there is a format change, a Kindle requires a firmware and or software update. After a certain period of time, just like for old computer hardware, firmware & software updates are no longer made for those beasts.

If you browse the My Kindle Content folder on your PC and compare the files there with the Files on various Kindle models, you will see they are different in many instances, between all different age devices. Different file extensions and different companion files.

Amazon started with something like MOBI, then moved to AZW, then moved to AZW3, and now have KFX. The only two extensions that appear in the My Kindle Content folder for Kindle For PC, are the first two, MOBI and AZW ... even for the most recent purchase of two days ago. On my Kindle Paperwhite 2, all four extensions show up.

So between my PC and both Kindles I have different versions of the same ebooks. Even AZW still, for current purchases.

10-18-2016, 10:17 PM	#44
Timboli Sharpest Tool On Shelf Posts: 661 Karma: 2587836 Join Date: Feb 2009 Location: Downunda Device: Kindles, Kobo & Samsung Tablet	Formats are an issue for some Kindles, and each time there is a format change, a Kindle requires a firmware and or software update. After a certain period of time, just like for old computer hardware, firmware & software updates are no longer made for those beasts. If you browse the My Kindle Content folder on your PC and compare the files there with the Files on various Kindle models, you will see they are different in many instances, between all different age devices. Different file extensions and different companion files. Amazon started with something like MOBI, then moved to AZW, then moved to AZW3, and now have KFX. The only two extensions that appear in the My Kindle Content folder for Kindle For PC, are the first two, MOBI and AZW ... even for the most recent purchase of two days ago. On my Kindle Paperwhite 2, all four extensions show up. So between my PC and both Kindles I have different versions of the same ebooks. Even AZW still, for current purchases. Last edited by Timboli; 10-18-2016 at 10:37 PM.