DVD
This page outlines information about DVD playing with LinuxMCE.
As the Xine Player is used to play DVD, most of the settings can be changed in the $root/etc/pluto/xine.conf configuration directory. $root points either to the root directory of the Core/Hybrid, ie. the file is /etc/pluto/xine.conf, or one of the diskless orbiters. The diskless orbiters file is /usr/pluto/diskless/$orbiter-id/etc/pluto/xine.conf.
DVD Language
To change the default DVD language from the current english, locate the line
#input.dvd_language:en
remove the hash and change it to the preferred language. For example, changing it to german, the line looks like this:
input.dvd_language:de
Audio Output via SP/DIF
If you have problems sending sound out thru your digital outs (SP/DIF coax or optical) have a look at the Sound Card page.
libdvdcss2
In 1004 (as of 12/29/2013) I had to do the following to get it work:
echo "deb http://download.videolan.org/pub/debian/stable/ / " >> /etc/apt/sources.list apt-get update apt-get install libdvdcss2