Life Estimation Method for Optical Disk and Data Migration Method for Digitally Recorded Media

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  • Watanabe Atsumi
    Committee on Reliable Usage System of Optical Disc, Digital Content Association of Japan

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  • 光ディスクの寿命推定法とその国際標準化動向
  • ヒカリ ディスク ノ ジュミョウ スイテイホウ ト ソノ コクサイ ヒョウジュンカ ドウコウ

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Abstract

Results of Study about lifetime estimation method for DVD disk are described. The study was performed by Digital Content Association of Japan (DCAj) under commission from The Mechanical Social Systems Foundation with subsidies from JKA's industry promotional funds raised from KEIRIN RACE. DVD disks for which quality control is well performed have lifetime of 50-100 years or more. Data migration method for digitally recorded media is also described. Here, error check is requested every 3 years. If the measured error rate is larger than determined value, immediate data migration to new media is requested.<br>

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