Just to put my 5 cents in... CRLF should in fact be 0x0D 0x0A. It's two characters!! It doesn't matter which operating system it is, it's still two characters. It all comes down to a bit of history. For those of us 'blessed' to remember line printers the significance of CR and LF was important not only for printing but also for display systems. The CR (Carriage Return) told the printer (or the VDU -Visual Display Unit) to go back to the beginning of the current line. While the LF told the printer to move down to the next line (the VDU also did the same). So to go back to the beginning of the line and start on the next line you had to send both CR and LF which later was joined as CRLF. This is where the meaning and separating of the two began to be forgotten and started a reign of debates about the meaning.
For someone like myself, a living fossil that remembers the good old days of punch cards, representing CRLF as a single character of 0x0A is incorrect as it is simply a LF with no return to the start of the line.
Notepad expects the CRLF at the end of a line and it must also be in that order CR followed by LF. Get them around the wrong way and it will not recognise it. WordPad on the other hand, doesn't care. If a CRLF is used in a document then it treats it the same as it would the LF (not sure what it would do if there was just a CR at the end of the line...might have to check that one out).
It's time for my nap.