DVD Video

The blossoming of the DVD video market is upon us. One great place to find DVD videos is on eBay. Let's look at the technical aspects of this revolutionary technology. Most commercial DVDs are comprised of two different 0.6 mm discs glued together. Each disc contains both an aluminum layer and a polycarbonate polymer layer. DVDs tend to be made of more advanced material than CDs--DVDs are inscribed with smaller grooves and tracks than CDs.

A single 0.6 mm DVD video disc can hold up to 4.7 GB, more than six times as much as a standard CD-ROM can store. DVDs are also layered with sophisticated readout technology, so you can store approximately 3.5 times more data on a DVD video than you can on a CD of comparable memory. Finally, DVDs are better coded than CDs. DVDs employ RS-PC coding. CDs, on the other hand, employ inferior CIRC error correction.

DVDs are also far superior to traditional VHS tapes in terms of flexibility, storability, and memory capacity. It's harder to scratch a DVD than it is to warp a VHS tape. That being said, manufacturers in both the gaming and the movie industries are working hard to streamline technology even further. Manufacturers now have the technical capacity to create "next tech" recording formats that are even more adaptable and powerful than the DVD. The only sticking points are "hard to get around" copyright issues.

Will the emergence of the DVD movie market change how studios release films? According to insiders, the answer is a resounding yes. In fact, we're already seeing such changes. Studios and distributors recently negotiated the installation of hundreds of digital movie projectors in theaters throughout the country. George Lucas and other noteworthy directors stumped long and hard for these digital projection updates. Of course, you can simply buy your favorite DVD videos on halfvalue and create your own digitial screening room at home.