Kindle/Calibre problem
Kindle Calibre problem:
If I import books from Kindle for PC to Calibre by copying the files and importing them into Calibre, many books (DRM I think) will not open. My Kindle gives me this snippy message that I am using an illegal device. But if I delete the book and download it directly from the cloud, it works fine. I own these books. Why does it make a difference what route it takes to get to my reader?
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