NUON-Dome is the web’s largest resource for information about VM Labs’ now defunct NUON technology. NUON was a DVD decoder chip replacement that allowed for advanced features and gaming to be integrated into standard DVD players that used the chip.
Only a handful of DVD players ever shipped with the chip inside, and the technology died a rather accelerated death. But the system continues to live on posthumously through the efforts of the NUON community and homebrewers.
Be sure to explore the entire NUON-Dome site to learn more.