De-DRM Amazon .azw books on Mac

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		Audio/video stream recording forums > Media file management > Removing copy-protection (like DRM, AACS)
De-DRM Amazon .azw books on Mac

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06-02-2012, 08:16 PM

mlevin77

Junior Member

Join Date: Jun 2012

Posts: 2

I'm using De-DRM v5.1, either as the plug-in to Calibre or the standalone AppleScript. It seems to work for some of my files (.AZW files on my Mac version of Kindle - books that I own) but for others, it says

"Error: decryption unsuccessful: no valid pid found"

but I thought the instructions say you don't need a pid for files in Mac Kindle application. What am I doing wrong?

Tags: drm

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