Blu-ray in relation to my product

Blu-ray uses a blue laser, what that means is that the wavelength is shorter so therefore it's easier to focus the laser with more precision, which in turn allows more information to be packed in the same amount of space.

Blu-ray discs can hold 25/50GB.

Blu-ray has also made a disc that can hold up to 500GB by adding 20 layers on the disc.

My product could be made with the same idea - more layers = more capacity. Also it only needs to be able to hold a movie.

Information from - http://www.blu-ray.com/info/

http://www.blu-ray.com/news/?id=1616