Quote:
Originally Posted by jackie_w
This might be rubbish but it's something else you might look at...
It's been a long time since I used a calibre catalog epub but from what I remember some of the individual html files contained a huge number of hyperlinks. Being calibre-created, I assume (???) that the rules about html filesize in epubs have been adhered to. However, during the epub-to-kepub process all the koboSpan <spans> will have been added. With a standard novel this isn't much overhead size-wise but if any individual file is mainly hyperlinks, the size increase % could be far higher than normal, maybe more than 100% increase.
I don't know if kepubs have filesize limits like epubs do but unzipping the kepub catalog and comparing individual html filesizes with the epub equivalents might be interesting.
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I don't know for the catalog that rebooted the One (which is 0.9 Mb as an epub in calibre - I kept it for reference), but for the very similar present one, which works, the epub size in Calibre is 0.9 Mb, and the kebub in the One is 1.3 Mb, which is a big difference compared to an essay about photography (many pictures): 1.5 Mb in Calibre and on the One.