xine is a media player for Unix released under the GNU General Public License. It can play CDs, DVD-Video, and VCD, as well as common computer multimedia formats like AVI, WMV, MOV, MP3, FLAC, Theora, Speex, and Vorbis.
xine can handle VCD/SVCD menus, mouse hot spots, navigation (called PBC or playback control), and multiple audio channels. Many of these are missing or incomplete in vlc version 0.8.4. (Actually, pretty much all VCD/SVCD handling is broken in vlc version 0.8.4.) But one area where vlc may be a little ahead of xine is in SVCD and CVD subtitle handling. SVCD and CVD subtitles in xine however require a separate plugin which is not part of xine whereas in vlc it is part of the main code base.