In some terminal emulators, certain byte values may not be printable in the current character set used. For example, in the terminal emulator Putty, the character set may be set to ISO 8859-1 West Europe, or similar. Changing the character set to UTF-8 will correct this problem, and allow Data File Editor to correctly display records containing this kind of binary data. In Putty, this setting is found under Window->Translation.