[CentOS] Totem needs plug-ins

Just tried to play a movie/DVD and Totem (what automatically popped up
when I inserted the DVD) said it needed plug-ins... it didn't say which
plug-ins.  The website listed in the help page no longer exists.  I have
four of the gstreamer packages and libdvdcss installed, but I guess
there's something more needed.

Anyone know?

tia for the tips.

-- 
War is a failure of the imagination.
        --William Blake