To arrive at this result, they succeeded in developing a layer of Blu-ray that is transparent to the red laser, but reflects blue. It was enough then to use the different properties between the DVD and Blu-ray, the latter is required to have its reflective layer much more close to surface. Thus, inserted in a reader DVD, this disk will be seen as a DVD; and then it will be recognised as Blu-ray media once inserted in the suitable reader.
If the price of this product remains acceptable, one should quickly see it arriving in the videos clubs which no longer will have to manage two references for the same product. There is also a possible interest by the general public, however in this case interest in universal media is less obvious since the Majors producers like to add a large surtax to the Blu-ray films.
