Problem with DVD playback

When I try to play a ripped DVD through nitoTV or Media, it flashes "Installing DVD Playback" on the upper right of the screen, and then reboots the ATV and returns me to the main menu.

ATV software (3.0.2) aTV Flash is the latest.
I ran the Smart Installer, and I am completely up to date.

Have tried everything this forum has suggested in previous topics of this nature.

All the folders for the DVD are correct and the dvd plays when I run it through XMBC.

 

PLEASE HELP, this is very frustrating!

Hi, you may try re-running the Smart Installer and restarting (disconnect power) the AppleTV.

http://support.firecore.com/entries/247181-finishing-the-installation