FYI, the TSU9600 software installs and uses a font named Pronto.ttf. As a result, you may want to backup your current Pronto.ttf file prior to installing the 9600 software as the font size is a bit smaller compared to the older font.
Characters 254 and 255 in this font also coincide with the NG font and are the Dolby Double D and DTS symbols respectively.