Quote:
Originally Posted by darryl
In this case, and it is really clutching at straws, could the "r" in the "kpr" input format in the second problem book signify "rich text format" Could these be some sort of intermediate file produced by KDP from Word or RTF before being input to Kindlegen? Perhaps even the mysterious Kindletool?
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Makes as much sense as anything else to me.
Quote:
Originally Posted by darryl
It may be that we will never know the answer. If the problem has now been fixed in KDP we will not be able to reproduce it.
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In all fairness ... there's technically not anything to "fix" in KDP (WRT this particular issue, anyway). Whatever processing is going on, it's producing a valid Kindlebook with a working internal NCX ToC--functional on all Kindle devices/apps. Problems only arose because KindleUnpack and calibre didn't (then) have a way of unbinary-ing them while retaining the functional ncx.