Another idea is to scan this information onto a disc.

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The system could thus provide astronomers with invaluable information about planet-disc interaction, suggests Alan Boss, a leading planet-formation theorist at the Carnegie Institution in Washington.

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That means Jeep executives can go to a secure Web site and pull up information about people playing its Disc Dogger game, designed by YaYa, as well as games designed by other companies.

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But while CDs can only hold a maximum of 650 megabytes, Pioneer's DVD-R disc, already available, holds nearly 4 gigabytes of information.

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Information that is going to be recorded so each game disc will require permission to run, and effectively allow you to kill the second hand games market?

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When you pop in a title the machine scans it for information and creates an on-screen catalog, searchable by the artist, title and type of disc.

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