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IBMの研究結果によれば、自分でPC等でCDにした場合、約2年間だそうで、冷暗所等の条件の良い場所できちんと保存しても5年間だそうです。 自分は最近店頭に並びだした、ブルーレイ待ちだったのですが、この文章ではブルーレイ等の新製品でも、保存性能自体は、あまり変わらないとの事です。 プリントを段ボール箱に詰めて保存するのがベストだというのですが・・・(苦笑) そう言えば、昔、一番文書をきちんと残せる手段は石版だと聞きましたが・・・(涙)
以下、原文です ↓
Data on CD lasts only two years
IBM boffin's warning
AN IBM BOFFINis warning that data stored on homemade CDs only lasts two years on average. Herr Kurt Gerecke said that if you keep your disks in dark, cool places they might last for five if you are lucky.
Commercially pressed discs last a lot longer and part of this might be something to do with the fact that homemade CDs are cheap and nasty. Even then Gerecke told the Australian Age they will only do better by five years.
Punters who are looking at better storage of their favorite films and family snaps should not hope that the new wave of HD-DVD or Blu-Ray will be much better either.
Generally, it is still better to print out your pictures and stuff them in a cardboard box in the loft.
http://homepage.mac.com/noriyukiuehara/
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