Eco-friendly disc to store data on corn

Updated on Dec 28, 2004 06:33 PM IST

Pioneer developed a Blu-ray optical disc made of corn to let the eco-conscious consumer dispose of data after use.

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HT Image
PTI | ByAgence France-Presse, Tokyo

Giving a new meaning to the term grassroots music, Pioneer Corp said on Thursday it had developed a next-generation disc made of corn to let the eco-conscious consumer dispose of data in the soil.

The Japanese electronics maker said the Blu-ray optical disc, which can be written once and stores 25 gigabytes of data, is 87 per cent natural polymer derived from corn and biodegrades.

"If the starch polymer is incinerated, it will not emit dioxins and any other harmful chemicals," the company said.

While the disc can theoretically be eaten, it is coated by a 0.1-millimeter (0.004-inch) thick layer of resin and is too hard for even the strongest teeth.

Pioneer has yet to decide when to market the disc.

Earlier this year Sony Corp and another Japanese company Toppan Printing said they had developed a paper disc that can be destroyed with scissors for fool-proof data security.

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