To anyone struggling to get DVD playback working after installing libdvdcss2 onto your Koala Mini (and perhaps other system 76 machines), please see the following post of mine, which lead me to the ultimate solution. Long story short: the DVD drive as shipped from system 76 didn't have a "region" set to it, so discs were not recognized and thus not playable. I suppose this makes sense since the Koala Mini is an aopen mini PC that ships world wide bare bones and that system 76 builds with an Ubuntu installation, etc.

Any how, to anyone out there struggling, give the post below a whirl and good luck.

http://ubuntuforums.org/showpost.php...&postcount=363