Hi, The following are excerpts from the mapping tables contained on the Unicode 3.0 CD for CNS-11643 and BIG5. The mapping tables are 7 years old. However since they are on the Unicode 3.0 CD I am assuming that they are still valid... CNS-11643 # WARNING! It is currently impossible to provide round-trip compatibility # between CNS 11643-1986 and Unicode. # (1) Some characters are not currently mapped because # of conflicts with other mappings. They include the following: # # CNS Description Comments # 0x12224 SPACING HEAVY OVERSCORE not in Unicode # 0x12226 SPACING HEAVY UNDERSCORE not in Unicode # The same two characters from the Big-5 table are said to be missing from Unicode. What the document isn't saying is how to handle round-trip compatibility to Unicode and back to CNS-11643 (same with Big-5). Are there any compatible characters in Unicode to map these code points to? If we map these characters to the Private Use Area, we can return them to CNS-11643, but if we display them directly in Unicode, how can we cope with the font issue? Thanks, Guy Lacoursière Software Globalisation Consultant Cognos Incorporated