Paper disc

Paper disc

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 [cite web|url= http://www.sony.net/SonyInfo/News/Press/200404/04-0415E/ |title= Press release |accessdate= 2008-04-15 |publisher= Sony .] .

Paper discs are made of 51% paper by weight [cite web|url= http://www.sony.net/SonyInfo/News/Press/200404/04-0415E/ |title= Press release |accessdate= 2008-04-15 |publisher= Sony ] .

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 [cite web|url= http://www.sony.net/SonyInfo/News/Press/200404/04-0415E/ |title= Press release |accessdate= 2008-04-15 |publisher= Sony ] .

External links

* [http://www.sony.net/SonyInfo/News/Press/200404/04-0415E/ Press release]
* Cite journal
conference = Optical Data Storage 2004-04-18
location = Monterey, CA
date = 2004-09
title= A 25-GB paper disc based on the blu-ray structure
last = Yamasaki
first = Takeshi
coauthors = Toshiro Kinoshita, Masayuki Taniguchi, and Tomomi Yukumoto
editor=B. V. K. Vijaya Kumar and Hiromichi Kobori
pages = 21–27
volume=5380
journal = Proceedings of SPIRE
url = http://spiedl.aip.org/dbt/dbt.jsp?KEY=PSISDG&Volume=5380&Issue=1
doi= 10.1117/12.557516

References


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