Dealing with Kindle for PC/Mac 1.19 and KFX in calibre - Page 120

theducks · 01-24-2023, 11:29 AM

Quote:

Originally Posted by stumped

It's less trivial for a book. You need to automate page turns. Then record as video , then isolate frames and convert to images, then turn images into a book...

I read a spy story recently where videos was used to steal documents by fast scrolling a screen and video recording it . That was fiction but seemed plausible

Old USA TV was 30 frames per second. Any educated spy should know where to find the vertical sync' pulse and use that as a trigger

Digital TV may only 'paint' changes so that sync trick won't work

(beside, all the circuit points are now in a single chip)

Quoth · 01-24-2023, 01:07 PM

Quote:

Originally Posted by theducks

Old USA TV was 30 frames per second. Any educated spy should know where to find the vertical sync' pulse and use that as a trigger

Digital TV may only 'paint' changes so that sync trick won't work

(beside, all the circuit points are now in a single chip)

Um, you used a suitable shutter speed. I've photographed US & European video without bands.

The current displays and how DTV is transmitted (changes & key frames) are very different. LCD & OLED have persistance for different reasons and rather different to CRT scanning.

I experimented with my SD camcorder and also my 20M pixel DSLR, which I didn't realise does true 1920x1080 video recording too till I got it (various frame rates). A 4K (3840 x 2160 as there are various 4K) screen is about 8.3M pixels.

I pointed the DSLR in video mode at the 4K computer screen. It made no difference if the GPU/GFX output at 24 fps or 60 fps. Nor did it matter which HD mode the camera used. The resulting recording had no banding or flicker or artefacts.

I'd say most current TV screens or monitors have their own internal native refresh and convert. As to how the 20 M pixel camera sensor is downsampled to 2M pixel? The 1920x1080 HD. Alternate FW does enable 4K recording but the electronics overheats. You can only do prolonged HD recording in a reasonable ambient temp. About 6 hours of it on an SD card.

meghane_e · 01-24-2023, 01:21 PM

Quote:

Originally Posted by Katsunami

So I can actually nuke the Kindle4PC apps, versions 1.17 and 1.26, that I painstakingly set up and tested under Wine because they just don't download ebooks anymore?

I would definitely NOT get rid of them. The problem with old programs is if they turn out to be useful with other people's tweaks and you've gotten rid of them, those programs will be difficult to find.

If you've got it, keep it until there has been a definite NO provided from multiple sources.

meghane_e · 01-24-2023, 01:23 PM

Quote:

Originally Posted by Quoth

Just boycott KU and only buy Kindle ebooks. KU benefits Amazon at the expense of authors. Use a real library to borrow ebooks, unlike Amazon they have to buy the copies. UK & Ireland also pay a per loan royalty.

Amazon's new publishing schema applies to books YOU OWN. It's not just KU.

Quoth · 01-24-2023, 01:51 PM

Quote:

Originally Posted by meghane_e

Amazon's new publishing schema applies to books YOU OWN. It's not just KU.

I've no problem buying ebooks from Amazon because I "Download to PC" and have an eink Kindle. But I read them on a Kobo.

We also sell ebooks on Amazon, as well as most other places, and without DRM. But I won't subscribe to Kindle Unlimited, nor will we use KDP Select, just regular KDP.

Amazon changes only apply to ancient Apps and KU.

lkmiller · 01-24-2023, 03:05 PM

Quote:

Originally Posted by Quoth

Amazon changes only apply to ancient Apps and KU.

Yup. It would have been months from now that I would have noticed anything on my own. Nothing's any different for me yet. And now I know to double-check if purchases can still be retrieved in a DeDRMable non-KFX format before buying anything published post 3 Jan.

Quoth · 01-24-2023, 03:20 PM

I bought an 18th Jan published Kindle eBook, no problem. It was azw3 format.

I've never seen kfx on Direct Download from "Manage my Content and Devices".

ownedbycats · 01-24-2023, 03:39 PM

alas, that's not so useful for us without a Kindle (or the desire/means to purchase one).

apw · 01-25-2023, 08:14 AM

I bought a Kindle book after January 3 2023. As shared on this forum, the old K4PC-Calibre trick didn't work anymore.
I have a Kindle 4.1.4 and followed the instructions of method 3. The azw file successfully downloaded to the computer. I added it to Calibre and it got listed with a visible cover in the right panel. However, upon opening or converting it said "This book is locked by DRM"...
I am not having this issue with older Kindle books that I did successfully de-DRMed using method 3.
Any of you have the same problem? Am I doing something wrong?
Thanks for any help!

Quoth · 01-25-2023, 08:37 AM

Quote:

Originally Posted by apw

I
I am not having this issue with older Kindle books that I did successfully de-DRMed using method 3.
Any of you have the same problem? Am I doing something wrong?
Thanks for any help!

Did you copy & paste the Kindle serial ID from "Manage my Content and Devices" Kindle details into the plug-in settings?

Probably not.

You'll need to remove the ebook and re-add it.

apw · 01-25-2023, 08:52 AM

Quote:

Originally Posted by Quoth

Did you copy & paste the Kindle serial ID from "Manage my Content and Devices" Kindle details into the plug-in settings?

Probably not.

You'll need to remove the ebook and re-add it.

No, I actually overlooked that part. I did it and it works now!
Thanks a ton! This is of great help

fermin · 01-25-2023, 10:46 AM

Quote:

Originally Posted by Quoth

Disable WiFi advantages:
1) ....

Disadvantages of WiFi Disabled:
a) .....

Excellent, thanks for the info. I'll do (or already did) as you suggested. My Kindle PW 11th gen arrived today. After registering and connecting it with my account I extracted the serial number, added that into the DeDRM plugin and was able to open a previously not decryptable file without any issues using the "download&transfer" option and importing the downloaded file into Calibre.

It looks like the device will indeed see little actual usage

Cootey · 01-25-2023, 12:38 PM

Is there a trick to getting this "download&transfer" option to work with comics/manga? It works fine for the latest book I purchased, but not the latest manga.

Also, Amazon updated their Japanese store with the new DRM scheme as well. Just FYI for those interested.

ownedbycats · 01-25-2023, 12:42 PM

If it's KFX only, you're out of luck.

freeder · 01-25-2023, 01:04 PM

Quote:

Originally Posted by lkmiller

now I know to double-check if purchases can still be retrieved in a DeDRMable non-KFX format before buying anything published post 3 Jan.

Can you say how you check that before buying?

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01-24-2023, 03:20 PM	#1792
Quoth Still reading Posts: 14,198 Karma: 105212035 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	I bought an 18th Jan published Kindle eBook, no problem. It was azw3 format. I've never seen kfx on Direct Download from "Manage my Content and Devices".

01-24-2023, 03:39 PM	#1793
ownedbycats Custom User Title Posts: 11,033 Karma: 75555555 Join Date: Oct 2018 Location: Canada Device: Kobo Libra H2O, formerly Aura HD	alas, that's not so useful for us without a Kindle (or the desire/means to purchase one).

01-25-2023, 08:14 AM	#1794
apw Junior Member Posts: 2 Karma: 10 Join Date: Sep 2016 Device: none	I bought a Kindle book after January 3 2023. As shared on this forum, the old K4PC-Calibre trick didn't work anymore. I have a Kindle 4.1.4 and followed the instructions of method 3. The azw file successfully downloaded to the computer. I added it to Calibre and it got listed with a visible cover in the right panel. However, upon opening or converting it said "This book is locked by DRM"... I am not having this issue with older Kindle books that I did successfully de-DRMed using method 3. Any of you have the same problem? Am I doing something wrong? Thanks for any help!

01-25-2023, 12:38 PM	#1798
Cootey Absentminded Reader Posts: 1,339 Karma: 7440829 Join Date: Apr 2017 Device: Kobo Mini, Libra Colour & Elipsa; Kindle Paperwhite 3 & 4; iOS apps	Is there a trick to getting this "download&transfer" option to work with comics/manga? It works fine for the latest book I purchased, but not the latest manga. Also, Amazon updated their Japanese store with the new DRM scheme as well. Just FYI for those interested.

01-25-2023, 12:42 PM	#1799
ownedbycats Custom User Title Posts: 11,033 Karma: 75555555 Join Date: Oct 2018 Location: Canada Device: Kobo Libra H2O, formerly Aura HD	If it's KFX only, you're out of luck.

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