By using reflective films, the inventors say their disc would enable the lasers to read the top layer and "see through" to the lower one if necessary. Additional information also could be stored on the other side of the disc.
Warner made the decision in October 2005 to support not just HD DVD but Blu-ray as well, and seemingly believes that the next generation DVD format war will wind up with no winners at all. Only by somehow unifying the formats will consumer confusion and dissatisfaction be avoided.
Toshiba appears to be ready to produce a three-layer hybrid disc in a joint venture with Memory-Tech, but only for HD DVD and standard DVD content.