Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Software > Calibre > Plugins

Notices

Reply
 
Thread Tools Search this Thread
Old 04-23-2021, 09:12 AM   #2236
compurandom
Guru
compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.compurandom ought to be getting tired of karma fortunes by now.
 
Posts: 676
Karma: 294342
Join Date: Jun 2015
Device: kobo aura h2o, kobo forma
IF the USB connector is failing, you are likely to get random disconnections which will most likely cause filesystem corruption on the sd card if you are trying to transfer data at the same time.

I don't think any errors you get in this situation tell you anything about the health of the sd card itself.
compurandom is online now   Reply With Quote
Old 04-28-2021, 05:23 PM   #2237
ownedbycats
Wizard
ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.
 
ownedbycats's Avatar
 
Posts: 2,553
Karma: 10851074
Join Date: Oct 2018
Device: Kobo Aura HD
Another thought of the Update ToC: A recent batch of fanfic updates had one of them change its title. however send books and update ToC are two different actions which both close the dialog. I had to do it twice.
ownedbycats is online now   Reply With Quote
Old 04-28-2021, 09:09 PM   #2238
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 21,614
Karma: 37281325
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by ownedbycats View Post
Another thought of the Update ToC: A recent batch of fanfic updates had one of them change its title. however send books and update ToC are two different actions which both close the dialog. I had to do it twice.
That is by design. If you need to update the actual book, you cannot update the ToC until that book is on the device. Send the books, wait for the jobs to finish and then update the ToC.

Yes, if you have already updated some books, you could send the new one and then do the updates for those already on the device. But, there could be database contention and you will need to come back for the other books after they are on the device.
davidfor is offline   Reply With Quote
Old 04-29-2021, 05:02 AM   #2239
ownedbycats
Wizard
ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.
 
ownedbycats's Avatar
 
Posts: 2,553
Karma: 10851074
Join Date: Oct 2018
Device: Kobo Aura HD
Ok that makes sense. Thankfully fanfic titles don't get changed too often so its not a common issue.
ownedbycats is online now   Reply With Quote
Old 05-04-2021, 02:43 AM   #2240
ownedbycats
Wizard
ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.ownedbycats ought to be getting tired of karma fortunes by now.
 
ownedbycats's Avatar
 
Posts: 2,553
Karma: 10851074
Join Date: Oct 2018
Device: Kobo Aura HD
On an eInk device, is there any advantages to uploading black & white covers?
ownedbycats is online now   Reply With Quote
Old 05-04-2021, 09:05 AM   #2241
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 21,614
Karma: 37281325
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by ownedbycats View Post
On an eInk device, is there any advantages to uploading black & white covers?
Only that they should be smaller which means less space and possibly faster to load.
davidfor is offline   Reply With Quote
Old 05-04-2021, 09:24 AM   #2242
jackie_w
Grand Sorcerer
jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.jackie_w ought to be getting tired of karma fortunes by now.
 
Posts: 5,746
Karma: 14372311
Join Date: Sep 2009
Location: UK
Device: Kobo: H2O, GloHD, KA1, ClaraHD, Forma
Quote:
Originally Posted by ownedbycats View Post
On an eInk device, is there any advantages to uploading black & white covers?
Quote:
Originally Posted by davidfor View Post
Only that they should be smaller which means less space and possibly faster to load.
Doesn't sending black-and-white covers also mean you can take advantage of the PC-end Dithering, PNG and Letterbox config options which aim to avoid excessive "banding" which occurs (or should that be past tense ???) whenever the Kobo device decides to do its own dithering? I'm sure @NiLuJe could explain this better than I can.
jackie_w is offline   Reply With Quote
Old 05-04-2021, 09:45 AM   #2243
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 21,614
Karma: 37281325
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by jackie_w View Post
Doesn't sending black-and-white covers also mean you can take advantage of the PC-end Dithering, PNG and Letterbox config options which aim to avoid excessive "banding" which occurs (or should that be past tense ???) whenever the Kobo device decides to do its own dithering? I'm sure @NiLuJe could explain this better than I can.
Possibly. But, I've lost track of where things are on the device. I just let the device generate the covers.
davidfor is offline   Reply With Quote
Old 05-04-2021, 12:29 PM   #2244
NiLuJe
BLAM!
NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.NiLuJe ought to be getting tired of karma fortunes by now.
 
NiLuJe's Avatar
 
Posts: 11,648
Karma: 20483323
Join Date: Jun 2010
Location: Paris, France
Device: Kindle 2i, 3g, 4, 5w, PW & PW2; Kobo H2O & Forma
Yeah, B&W + dithering + PNG usually yields smaller and better looking covers.

(Enforcing letterboxing also helps prevent Nickel re-processing that file on display on *most* (but not all) devices).

The quality/banding aspect is less of an issue nowadays, as Mk. 7 devices do that on their own, and Nickel itself now does a semi-decent pass on its own on older devices. Results differ whether Nickel or RMSDK does it, though (i.e., KePub vs. ePub).

In any case, what calibre does will trounce what both of 'em attempt.

TL;DR: If you are actually letting Calibre generate the thumbnails, then, yeah, I wholeheartedly recommend B&W + dither + PNG + letterbox. (a.k.a., check all the things ;p).

Otherwise, as @davidfor said, don't let calibre do it *at all*.

(Of particular notice, a dithered JPG will look *terrible*, so, that combo is *bad*).

Last edited by NiLuJe; 05-04-2021 at 12:35 PM.
NiLuJe is offline   Reply With Quote
Reply

Tags
kobo, kobo utilities

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
[GUI Plugin] Hyphenate This! SauliusP. Plugins 461 05-02-2021 12:17 AM
[GUI Plugin] KindleUnpack - The Plugin DiapDealer Plugins 468 02-07-2021 04:07 PM
[GUI Plugin] EpubSplit JimmXinu Plugins 343 02-04-2021 06:28 PM
[GUI Plugin] Wordpress frescogamba Plugins 11 04-06-2015 09:09 PM
[GUI Plugin] Plugin Updater **Deprecated** kiwidude Plugins 159 06-19-2011 12:27 PM


All times are GMT -4. The time now is 01:16 AM.


MobileRead.com is a privately owned, operated and funded community.