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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 .
External links
- Press release
- Yamasaki, Takeshi (2004-09). B. V. K. Vijaya Kumar and Hiromichi Kobori (ed.). "A 25-GB paper disc based on the blu-ray structure". Proceedings of SPIRE. 5380. Monterey, CA: 21–27.
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References
- "Press release". Sony. Retrieved 2008-04-15..
- "Press release". Sony. Retrieved 2008-04-15.
- "Press release". Sony. Retrieved 2008-04-15.