Quote:
Originally Posted by jlandahl
I noticed that certain 3-digit ISO 8859/1 character entities that went smoothly through epubcheck and rendered as intended in Calibre and on the Kindle were displayed as question marks in the Nook preview! The workaround was to replace them with the corresponding 4-digit Unicode character entities, but now I wonder which type to use for other devices like the iPad and the Sony Reader.
The 3-digit character entity that does render properly in the Nook preview is ©, the copyright symbol.
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Your 3-digit codes are probably referring to some Windows codepage encoding, while ePUB requires everything to be in Unicode. The placement of the quote marks in these two encodings is different, the copyright symbol happens to be in the same slot (A9 = 169).
Use Unicode references everywhere (or input the characters directly in UTF8) and it should be fine, otherwise you are asking for problems, even if it sometimes work (because you are lucky, mainly). Or use real entities: “ ” ‘ ’ – ©