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#1 |
Guru
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Karma: 1538394
Join Date: Sep 2013
Device: Kobo Forma
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What Constitutes a Malformed Book?
In trying to figure out what's going on with my Forma's sudden battery drain issue, I keep running across statements that this could be caused by my sideloading badly formatted ebooks that are, perhaps, leading to loops, corrupting the device's database and draining the battery. Assuming this is not so much organic fertilizer, what constitutes a badly formed book? Almost everything I read, I've sideloaded from Calibre after stripping out the publisher's crud formatting and substituting my own. And, before I'm done, I make sure the book completes clean runs of both the Calibre Editor's Check Book tool and the EpubCheck plugin. Shouldn't that prevent me from sideloading badly formed books?
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#2 |
Grand Sorcerer
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Karma: 239219453
Join Date: Jan 2014
Location: Estonia
Device: Kobo Sage & Libra 2
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All my books are sideloaded from Calibre, and while I fix the formatting to my taste, I never run any checks on them. No unusual battery drain on either of my Kobos. I have well over a thousand books on each.
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#3 |
Wizard
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Karma: 9500498
Join Date: Sep 2021
Location: Australia
Device: Kobo Libra 2
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A little while ago I had an ebook where the paperback was 520 odd pages, and the ebook had the entire novel in one html page. Something like 4,000+ lines.
Though I never sideloaded it until I fixed it, I imagine it would be draining for the ereader to try and format for display that large html file? |
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#4 |
Still reading
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Karma: 103895653
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
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A more common problem for the Kindle as it does a full index of eBook contents.
Kobo FW scans newly added books and adds them to the database, that has worked if it appears on Unread list. Then there is only an issue if you try to read a malformed/faulty book. Your issue is more likely a faulty cell (battery). |
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#5 | |
Still reading
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Karma: 103895653
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper
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#6 |
Member
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Karma: 12
Join Date: Feb 2020
Device: Kobo Libra h2o
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Not sure what might. But it sounds like you have the chops and desire to move up to a heavyweight editor like Sigil.
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#7 | |
Custom User Title
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Karma: 74999999
Join Date: Oct 2018
Location: Canada
Device: Kobo Libra H2O, formerly Aura HD
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I got frequent "malformed books" on my Aura HD from the SD card crapping out.
Quote:
Last edited by ownedbycats; 01-11-2023 at 08:09 AM. |
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#8 |
Guru
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Karma: 1538394
Join Date: Sep 2013
Device: Kobo Forma
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Something wrong with the actual transfer to, or the storage on, the ereader is what I was considering as being the most likely cause of "malformed" books. I might do a full, manual factory reset of this Forma and re-sideload everything just to make sure nothing's gone bad.
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#9 |
Resident Curmudgeon
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Karma: 145864619
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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I always use the Calibre checker and epubcheck. That way, I can fix any errors I may have made.
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