Quote:
Originally Posted by jackie_w
As far as I know calibre doesn't write a 3-char language code into a converted epub, it writes a 2-char code.
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You are right. Sorry. I did not see 3-char in epub, but in azw3. It was just quick epub>azw3 conversion test...
- library metadata.opf file uses 3-chars, as mentioned
- conversion to epub makes 2-chars (even if there are only 3-char sources in library...)
So 3-chars "issue" actually detected just in azw3.