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Old 03-24-2015, 11:00 AM   #15
cybmole
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I must be having a bad brain week. I still don't get the difference between azw(3) and "new" mobi"

ignoring the extension naming scheme confusion, is what's in the file different.

I think I get the rest but please point out any further errors.

"old " mobi is what we had before azw was invented - it's what amazon grabbed from mobipocket, & its what calibre would have converted to before there was a mobi output choice screen,

"both" is obviously old + new.

at some point, I slept through calibre evolving to support both new and old mobi and adding a choice screen.
( I assume that it was some genius at amazon, mot at MR, that decided we should call both .mobi - to me this like someone inventing a new, improved .mp3 but calling it .mp3, for giggles)


"azw" is what I see on some books in My Kindle Content. If I add those files to calibre they become AZW3 ( for some obvious reason that escapes me this week )
" mobi" is what I see for the other books in My Kindle content folder
( excluding any .prc that may have sneaked in - lets not go there yet ! )

question: inside the ".mobi" delivered to My Kindle Content by Kindle for PC, is there new/ old / or both or does that vary by book ?

quote: While we are at it, can we just have .ebooks. that would be the .ebok format ? but amazon already use it. pretty sure I've seen it in Kindle Fire folders
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