What is a dual-layered DVD?
A DVD can hold digital information on both sides of the disc and in two sandwiched layers on each side. A dual-layered disc, for example, can offer a movie in both widescreen and full-screen (or pan-and-scan) formats, and your DVD player can switch from one layer to another with a barely perceptible interruption in playback. Dual-layered DVDs are also useful for holding longer films (such as Titanic and Saving Private Ryan) or video games that exceed the capacity of a single layer.
