5D DVD

A 5D DVD is a digital storage medium akin to a DVD being developed by Peter Zijlstra, James Chon and Min Gu at the Swinburne University of Technology in Melbourne, Australia. In 2009, the developers estimated that the technology could be commercially ready in five to ten years.

Advantages over current discs

5D DVDs use a writing system that uses extremely tiny particles on which data is written, with multiple layers that are read by three different colors of laser (rather than only one, as is the case with DVDs and Blu-ray discs). According to the developers, this could result in discs with a capacity of 10 terabytes, approximately 2000 times the capacity of a standard DVD, compared to Holographic Versatile Disc technology, which has an estimated maximum disc capacity of 6 terabytes. The similarity of disc writing would also make it easier to make 5D DVD players backwards-compatible with existing CD and DVD technology.

References

DVD

DVD ( "digital versatile disc" or "digital video disc") is a digital optical disc storage format invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players. DVDs offer higher storage capacity than compact discs while having the same dimensions.

Pre-recorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. Such discs are a form of DVD-ROMs, because data can only be read and not written or erased. Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Rewritable DVDs (DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.

DVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders). DVDs containing other types of information may be referred to as DVD data discs.

Flexplay

Flexplay is a trademark for a DVD-compatible optical video disc format with a time-limited (usually 48-hour) playback time. They are often described as "self-destructing" although the disc merely turns black and does not physically disintegrate. The same technology was used by Disney's Buena Vista Home Entertainment under the name ez-D. The Flexplay concept was invented by two professors, Yannis Bakos and Erik Brynjolfsson, who founded Flexplay Technologies in 1999. The technology was developed by Flexplay Technologies and General Electric.

Overview

The technology was originally intended as an alternative means for the short-term rental of newly released movies. Since the disc is capable of being used in any standard DVD player, the manufacturers hoped it would succeed where other time-limited DVD technologies, such as DIVX, failed. Test marketing of EZ-D discs began on August 2003 but was canceled early when consumers rejected the concept (partly due to environmental issues). Due to fears of cannibalizing DVD sales, movies were made available on eZ-D between 2 months and several years after being released on DVD and were priced at US$6.99, both factors that significantly limited consumer demand.

777 (DVD)

777 is the first DVD by American Christian metalcore band Underoath. It was released in the United States and other countries on July 17, 2007, with the intention of having the numbers of its release date coincide with the DVD title.

The DVD is split into three sections: "Moments Suspended in Time"; the "MySpace Secret Show", which was played in St. Petersburg, Florida; and a music video section. The three music videos included are the final products of Underoath's video shoot in Skellefteå, Sweden with Popcore Films. The making of the music video for "You're Ever So Inviting" is exclusively recorded on the DVD as well.

DVD track listing

Moments Suspended in Time