"... DNSB wrote: Instead of Check Book which is a rather simplistic check, try using epubcheck. As for the re-import? You do not save a backup copy before editing? ..."
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Two things:
1 - I'm not asking for support as much as I'm trying to present to Kovid Goyal that the various EPUB checking algorithms in the Calibre Ebook program disagree with each other:
make all Calibre Ebook check routines equivalent.
2 - 'Help'-wise, yes, once I've completely edited an EPUB, I'm chagrinned that those edits are lost and I have to re-do them, hence the query if it's possible to re-import THE SUPOSEDLY OK BUT REALLY DAMAGED EPUB without it's apparently munged metadata, other wise, I either re-edit after re-importing the original, or in this case, Amazon converted it to MOBI ( and KFX ) no problem - in other words, instead of Calibre saying "I can't open this for editing",
how about Calibre saying "This appears damaged, please wait a moment while I fix it".
So this thread is more of a report to Kovid Goyal than it is a request for specific EPUB repair for me, more of a general "once an EPUB becomes corrupt,
in spite of the Calibre Edit book Check book saying "no problems", but then the EPUB cannot be re-opened for editing, for polishing, for converting, only for reading ( funny that ), or for sending to Amazon, who converts it just fine, no problem.
Regarding epubcheck, I presume from W3.org, do you expect that program to FIX malformatted metadata?
Thanks.
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