MobileRead Forums - View Single Post - Unable to open .epub I've created in Calibre

4rm · 01-14-2021, 12:47 AM

I've created an ePub in Calibre 4.23 from OCR'd scanned images, and everything looks good on my computer. Calibre reports no errors with the ePub, and the ePub Validator reports no errors either. I'm able to open and read the ePub in SumatraPDF and Calibre just fine.

However, if I try opening the ePub on my Aura One, it freezes for ~30s before rebooting itself. I never even see the cover. The file is 6.94MB for ~600 pages, and I haven't had any problems in the past opening similarly sized books (as far as I can remember).

This is my first time trying to create an ePub, so I'm not sure what to test. I couldn't find any error logs on the ereader, and otherwise, it has no problems opening any other ePubs.

I would love to share the ePub in question, but I'm not sure if that's allowed. Please let me know if it is, and I'll upload it. It's a scanned version of a book that was published relatively recently (2014).

Unfortunately, since I'm so new, I'm not even sure what information is relevant. Please let me know if there's any log files, config files, or anything else that could help troubleshoot.

Thank you!

01-14-2021, 12:47 AM	#1
4rm Junior Member Posts: 7 Karma: 10 Join Date: Jan 2021 Device: Kobo Aura One	Unable to open .epub I've created in Calibre I've created an ePub in Calibre 4.23 from OCR'd scanned images, and everything looks good on my computer. Calibre reports no errors with the ePub, and the ePub Validator reports no errors either. I'm able to open and read the ePub in SumatraPDF and Calibre just fine. However, if I try opening the ePub on my Aura One, it freezes for ~30s before rebooting itself. I never even see the cover. The file is 6.94MB for ~600 pages, and I haven't had any problems in the past opening similarly sized books (as far as I can remember). This is my first time trying to create an ePub, so I'm not sure what to test. I couldn't find any error logs on the ereader, and otherwise, it has no problems opening any other ePubs. I would love to share the ePub in question, but I'm not sure if that's allowed. Please let me know if it is, and I'll upload it. It's a scanned version of a book that was published relatively recently (2014). Unfortunately, since I'm so new, I'm not even sure what information is relevant. Please let me know if there's any log files, config files, or anything else that could help troubleshoot. Thank you!