It looks like mplayer depends on their own fork of libdvdnav: http://svn.mplayerhq.hu/dvdnav/trunk/libdvdnav/
Theirs differs significantly from the one in Gutsy (presumably from http://sourceforge.net/projects/dvd/, last updated in 2004).
It looks like mplayer depends on their own fork of libdvdnav: svn.mplayerhq. hu/dvdnav/ trunk/libdvdnav /
http://
Theirs differs significantly from the one in Gutsy (presumably from http:// sourceforge. net/projects/ dvd/, last updated in 2004).