Quote:
Originally Posted by cybmole
except that Kovid says that the original_format file is NOT a backup and should NOT be used as a backup 
so if some future version of calibre zaps all such files without asking first, you have been warned.
He has repeatedly said that you should store your own backup versions outside of calibre.
Having said that, I live dangerously & keep mine inside of calibre, as backups . So far so good |
You keep raising this hobby horse of yours, and once again you are wrong.
The ORIGINAL_FMT that calibre keeps is a perfectly correct
backup of a pre-automated-conversion ebook.
The ORIGINAL_FMT ebook will
never be zapped. It will
always zap the FMT ebook.
Which is exactly what it should do in @GeoffR's case.
And... that is exactly why the ORIGINAL_FMT facility exists
in the first place.
...
Your case is as we keep telling you, completely different -- you want to keep multiple
revisions, which is very different from a pre-conversion backup.
And the problem is that you run the risk of forgetting, trying to convert the book, and
zapping the new revision.
...
...
calibre is designed to Do The Right Thing if you let it do the work -- so converting EPUB --> EPUB won't mess anything up, because calibre will automatically save the pre-conversion copy and use that for conversions.
When you mess around underneath calibre's skirts and add your own ORIGINAL_EPUB files, you're darn right you're living on the edge!
Stop trying to confuse people. Please.