it follows from the fact that new language and country codes are added to the ISO standards from time to time and that a compliant demuxer must not reject a valid file which uses such a new code which was not know when the demuxer was written git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22217 b3059339-0415-0410-9bf9-f77b7e298cf2