Originally Posted by chyron8472
Because, if I convert an individual book and it has any format as well as already has MOBI, if I convert from something else to MOBI, that "Convert Existing" popup does not appear. If I tell same individual book to convert from MOBI to MOBI, it does.
Ah. Curiously enough, when converting an individual book, I don't get that warning. I may have disabled the dialog sometime in the past, though.