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Old 09-03-2017, 02:15 AM   #1
Littletart
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Epubs open in Calibre but not on my Nook

No reason anyone should be able to solve my problem, but it never hurts to ask. I have been reading epubs on my admittedly outdated Nook. I would say that one in 5 epubs I open give me an error message saying my Nook can not open the bad file. But they open fine in Calibre, the ebook library system. It seems strange. I assume it is some issue with my Nook, but even when I convert the epub file to a PDF it still won't open.

Sorry this is so rambly, but I thought maybe with info some one might have an idea. I really want to read these books!
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Old 09-03-2017, 03:35 AM   #2
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Try the following:

1. Validate problematic epubs with the IDPF online validator to check for structural errors.

2. Right-click the epub in Calibre, select Edit book, click Run check, click Try to fix all correctable error automatically and then save the epub.
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Old 09-03-2017, 07:04 AM   #3
HarryT
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Is the old Nook perhaps limited in the size of an ePub "flow" it can handle? ISTR that old ePub devices had a flow size limit of around 260kb. Try doing an ePub to ePub conversion in Calibre - if the book does have large flows, this will break them down into smaller ones and may fix the problem.
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Old 09-03-2017, 12:35 PM   #4
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Quote:
Originally Posted by HarryT View Post
Is the old Nook perhaps limited in the size of an ePub "flow" it can handle? ISTR that old ePub devices had a flow size limit of around 260kb. Try doing an ePub to ePub conversion in Calibre - if the book does have large flows, this will break them down into smaller ones and may fix the problem.
Yes, any xhtml over 260kb will not show, I have had some problems with 257kb files.

bernie
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