Issue #1835 has been updated by Yui NARUSE. Ruby 1.9 treats 0x00-0x7F specially because 0x00-0x7F is compatible with many other encodings. (ASCII compatible encosings) But 0x80-0xFF doesn't. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/1835 ---------------------------------------- http://redmine.ruby-lang.org