How well can Calibre convert ePub 3 files?
Related question: I'm seeing more and more epub3 among the books I buy. How important is it to manually strip out the epub3 stuff before I convert it with Calibre? I've been doing it with all my epub3s, but wondering if it's truly necessary. I'm generally going from epub3 to dual-mobi or azw3. Thx!
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