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Old 09-01-2015, 10:49 AM   #361
shalym
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Originally Posted by darryl View Post
I have tested a direct download of a book with the new typography to a Kindle File. The new typography is in fact displayed. Also, I could not find the actual ebook (usually a .prc) in the usual location. My presumption is that the download is a kfx though I am not sure where it is stored. Also, given the new typography is working on the Kindle Fire it can't be too far off on Kindle for Android, if it is not working already.
A direct download to what? Your Paperwhite? Your computer? Your Android phone? If you download to the Paperwhite, then (as has been discussed here already) the file type will be .kfx, which is not seen by Calibre. If to your computer, then that is something new, as nobody has been able to reproduce that yet, and I would be interested to know which book it is so that I can try to reproduce it. (Downloading to a PC using either the Kindle for PC app or the "download and transfer by USB" option both seem to produce regular .azw3 files)

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Old 09-01-2015, 12:52 PM   #362
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Originally Posted by Tully View Post
Harry... I was able to do "Download by USB" and then put them on Calibre.
Had to do that as when I tried sending to Kindle for Mac, it still sent only KFX, too.
Tully, are you sure that you got KFX when downloading via Kindle for Mac?

I just tested on the latest version (Kindle for Mac 1.12.0) and got AZW3 for everything, including books that show up as KFX when downloaded directly to my Voyage.
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Old 09-01-2015, 03:57 PM   #363
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Originally Posted by HarryT View Post
Really no point in doing that. Old versions of K4PC stop working after a certain period of time.
So, after Amazon fully converts to KFX, and Adobe/Kobo/Others ban ADE 2.0.1, we will be back in 2008, before Alf and friends got really going. Should this happen, I won't buy an ebook again (except for DRM-free ones obviously) until the new DRM is cracked.

I refuse to use any media that I cannot use independently, be it movies, music or books.

Last edited by Katsunami; 09-01-2015 at 04:04 PM.
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Old 09-01-2015, 04:08 PM   #364
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Originally Posted by cybmole View Post
+1
worst case is we all head to ebay for ancient mobi-only kindle models to download onto

is there any techie discussion / analysis of KFX & its DRM going on elsewhere - where such things are allowed ?
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Originally Posted by HarryT View Post
Best place to ask that would be Alf's blog.
I don't see why that would be necessary -- the trick to KFX is not copyright-"enforcing" DRM, it is the fact that the file format is an entirely new iteration.

I have no idea where AZW3 was actually discussed when it was reverse-engineered, but I don't see why that either would be banned on MobileRead.

Rule of thumb -- if it would be merged into the official calibre codebase, it would also be okay to discuss on MobileRead.

We have already had preliminary discussion of KFX here on MobileRead (in the Kindle Formats subforum).


Is this going to become the second fully qualified zombie meme? (#1 is here)
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Old 09-01-2015, 04:28 PM   #365
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I am fairly positive that the only person who said K4PC delivers KFX was JSWolf -- he said so based on hearsay, after hearing someone say the update included Bookerly.
He has since retracted his assumption.
I based KFX on something that I misread on my computer. Nothing to do with Bookerly.

What I am unsure of is if the new K4PC & K4MAC deliver thee new AZW3 (with AZW6 inside for images).
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Old 09-01-2015, 05:17 PM   #366
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AZW6 is a totally different beast, as someone stated earlier in the thread I believe it is only used for fixed format and comic books, due to their image-centric nature.
Either way, you can actually repair an AZW6 book by adding your own images, or simply read it without the images. Text imports fine, or so I've heard.
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Old 09-01-2015, 05:21 PM   #367
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I don't see why that would be necessary -- the trick to KFX is not copyright-"enforcing" DRM, it is the fact that the file format is an entirely new iteration.
I didn't say it was "necessary". I simply happen to think that it's the place you're most likely to find people with most interest and experience in reverse-engineering the format.
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Old 09-01-2015, 05:27 PM   #368
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Actually, I am not so sure of that. The people who hack on KindleUnpack I think are more likely to figure it out. They are coordinated through a thread on MobileRead.
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Old 09-01-2015, 09:26 PM   #369
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Originally Posted by Katsunami View Post
So, after Amazon fully converts to KFX, and Adobe/Kobo/Others ban ADE 2.0.1, we will be back in 2008, before Alf and friends got really going. Should this happen, I won't buy an ebook again (except for DRM-free ones obviously) until the new DRM is cracked.

I refuse to use any media that I cannot use independently, be it movies, music or books.
2 seconds per screenshot on hi-res tablet and an average ebook is scanned for 10-15 minutes as images or video(using some screen recorder).

Those who wouldn't want to do that manually because e.g. they buy a lot of ebooks on a regular basis, could probably by then get some app to do that for them automatically.

Last edited by markom; 09-01-2015 at 10:12 PM.
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Old 09-01-2015, 10:18 PM   #370
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Originally Posted by eschwartz View Post
I don't see why that would be necessary -- the trick to KFX is not copyright-"enforcing" DRM, it is the fact that the file format is an entirely new iteration.

I have no idea where AZW3 was actually discussed when it was reverse-engineered, but I don't see why that either would be banned on MobileRead.
I mostly agree with you, except for one point. Instances of DRM-free MOBI and AZW3 files exist and are easily obtainable. There don't appear to be any legal issues involved in reverse-engineering and working with those formats.

KFX on the other hand appears to only exist in an encrypted form (DRMION), even for books marked in Amazon as "Simultaneous Device Usage: Unlimited". Decoding this format may be a DMCA violation for US citizens.

Last edited by jhowell; 09-01-2015 at 10:26 PM.
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Old 09-01-2015, 10:57 PM   #371
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Originally Posted by shalym View Post
A direct download to what? Your Paperwhite? Your computer? Your Android phone? If you download to the Paperwhite, then (as has been discussed here already) the file type will be .kfx, which is not seen by Calibre. If to your computer, then that is something new, as nobody has been able to reproduce that yet, and I would be interested to know which book it is so that I can try to reproduce it. (Downloading to a PC using either the Kindle for PC app or the "download and transfer by USB" option both seem to produce regular .azw3 files)

Shari
Sorry Shari. You quite rightly picked-up on a serious typo that changed the whole meaning of the post. My only excuse is that it was late. The download was to my Kindle FIRE, not Kindle file.
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Old 09-02-2015, 03:01 AM   #372
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2 seconds per screenshot on hi-res tablet and an average ebook is scanned for 10-15 minutes as images or video(using some screen recorder). Those who wouldn't want to do that manually because e.g. they buy a lot of ebooks on a regular basis, could probably by then get some app to do that for them automatically.
That's no way of doing. I already find it entirely too much work to finally get every book I have in such a shape that it sits in the library without errors in them and with correct metadata and a nice cover. This requires me to check each and every book by hand using the editor, and looking up all metadata for each book.

I bought way too many books (everything I was interested in, everything I thought I might be interested in) during the 90% Kobo code sprees last year.
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Old 09-02-2015, 03:02 AM   #373
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There is something I am unsure about.

Is there a difference in downloading with Kindle for PC, and downloading for transfer via USB? I see both of them mentioned all the time.
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Old 09-02-2015, 03:07 AM   #374
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There is something I am unsure about.

Is there a difference in downloading with Kindle for PC, and downloading for transfer via USB? I see both of them mentioned all the time.
Both achieve the same end result, and for transferring a single file there's really nothing it in. If you buy a fair number of books, though, the K4PC route is easier, because I have it as my default device when buying books, so any new books I've bought are automatically downloaded to it when I run it. With "transfer via USB" I'd need to manually download the books one at a time.
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Old 09-02-2015, 03:29 AM   #375
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You will have to have K4PC installed to be able to use Alf.

Now... let's say Amazon fully converts to KFX for K4PC downloads, and old versions of K4PC stop working. Also, Transfer by USB might delivering AZW3 files because Amazon cannot know for which device you are downloading.

If this is the case, would it be possible to leave K4PC installed, block the executable from running (just remove your user access rights from it), and then downloading books for transfer by USB and importing them into Calibre, having K4PC installed only to provide the encryption key?
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