A: Thomas Paine believed that the American army would become the strongest in the world, that America would achieve independence from Britain with a strong ar... Full Answer > Filed Under:
How DVDs Work. DVDs are of the same diameter and thickness as CDs, and they are made using some of the same materials and manufacturing methods. Like a CD, the data on a DVD is encoded in the form of small pits and bumps in the track of the disc. A DVD is composed of several layers of plastic, totaling about 1.2 millimeters thick. Each layer is created by injection molding polycarbonate plastic.
HD DVD discs can only be played in an HD DVD player. A standard DVD  player will not recognize the disc. HD DVD is no longer  manufactured with Bluray becoming the single HDâ¦ disc format  supported.    Unfortunately, HD DVD cannot be played in Bluray players either. If  you want to playback HD DVD, Macgo Blu-ray Player could playback HD  DVD and Blu-ray Discs.