Paper disc
Encyclopedia
The paper disc is one of the formats chosen to succeed the DVD
. Developed by Sony
and Toppan Printing, the disc can be read by Sony's new Blu-ray Disc
(BD) format and offers up to 25 GB of storage. It was officially announced on April 15, 2004.
Paper discs are made of 51% paper
by weight.
Basic structure of a paper disk is similar to the ordinary Blu-ray Disk. In a BD the recording layer on which the data is stored lies under a 0.1 millimeter protective layer and on top of a 1.1 millimeter thick substrate. The substrate, or basic surface on which a material adheres, is usually made of a polycarbonate
plastic, but the new disc replaces this with paper. The result is a disc of which paper makes up approximately 51 percent of its weight, Sony says. Toppan also had been flirting with the paper disc idea at their San Diego location. Toppan had a local San Diego location, Toppan Electronics at 7770 Miramar rd 92126, their Miramar location featured computer chips and some other confidential projects that never surfaced. They closed their doors at the Miramar location for unknown reasons back in 2004 and to this day the location remains an empty building, but is still owned by Toppan. They tried a new division, Toppan Optical Products in Poway in 2004 and made TV screens for rear projection televisions, but it never caught on. This location has since been sold to General Atomics Corp.
DVD
A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....
. Developed by Sony
Sony
, commonly referred to as Sony, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan and the world's fifth largest media conglomerate measured by revenues....
and Toppan Printing, the disc can be read by Sony's new Blu-ray Disc
Blu-ray Disc
Blu-ray Disc is an optical disc storage medium designed to supersede the DVD format. The plastic disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs being the norm for feature-length video discs...
(BD) format and offers up to 25 GB of storage. It was officially announced on April 15, 2004.
Paper discs are made of 51% paper
Paper
Paper is a thin material mainly used for writing upon, printing upon, drawing or for packaging. It is produced by pressing together moist fibers, typically cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets....
by weight.
Basic structure of a paper disk is similar to the ordinary Blu-ray Disk. In a BD the recording layer on which the data is stored lies under a 0.1 millimeter protective layer and on top of a 1.1 millimeter thick substrate. The substrate, or basic surface on which a material adheres, is usually made of a polycarbonate
Polycarbonate
PolycarbonatePhysical PropertiesDensity 1.20–1.22 g/cm3Abbe number 34.0Refractive index 1.584–1.586FlammabilityV0-V2Limiting oxygen index25–27%Water absorption – Equilibrium0.16–0.35%Water absorption – over 24 hours0.1%...
plastic, but the new disc replaces this with paper. The result is a disc of which paper makes up approximately 51 percent of its weight, Sony says. Toppan also had been flirting with the paper disc idea at their San Diego location. Toppan had a local San Diego location, Toppan Electronics at 7770 Miramar rd 92126, their Miramar location featured computer chips and some other confidential projects that never surfaced. They closed their doors at the Miramar location for unknown reasons back in 2004 and to this day the location remains an empty building, but is still owned by Toppan. They tried a new division, Toppan Optical Products in Poway in 2004 and made TV screens for rear projection televisions, but it never caught on. This location has since been sold to General Atomics Corp.