su 명령어를 이용하여 root 계정으로 바꿔준다. [Installation Codec] yum install ffmpeg ffmpeg-libs gstreamer-ffmpeg libmatroska xvidcore [Installation Totem] yum install totem-xine totem-gstreamer xine-lib-extras-freeworld [Installation MPlayer] yum install mplayer smplayer [Installation VLC] yum install vlc [Installation Kaffeine] yum install kaffeine xine xine-lib xine-lib-extras-freeworld http://kin.naver.com/qna/detail.nhn?d1id=1&dirId=10302&docId=70473736&qb=66as64iF7IqkIHRvdGVt&enc=utf8&section=kin&rank=1&sort=0&spq=0&pid=gtDIJwoi5TVssu38MZCsss–446103&sid=TBl676dXGUwAAC38FJI]