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.
A: There are several methods to copy, or rip, a DVD to computer. If the disc is homemade, simply copying the contents of the DVD and then pasting them into the desired folder on the computer's hard drive can work. If the DVD is protected by copyright, transferring it may require the use of a video transcoder.