Thank you for your answer. It does not work in Ubuntu 11.10 either. Now I know why.

I'm using both Slacko 5.3.1 Black Beauty and Lucid 5.2.8 and neither one will play a data file from my DVD I have no problem with audio or burning ISO files. I have a Compaq Presario Model cq 5000 with a AMD 170 u cpu at 2Ghz with 8 Gb of ram on a Foxcon amd 3+ MB with a 760 chip set and a 500 GB HD...