引用:
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作者evens
都有各方的看法啦~我也沒強迫要接受我的說法!
反正市場最終會決定!!!
只要是碟片~沒有什麼是能刮的!
保存性~是單指圖層染料技術!!
帶不帶殼~也只是多了層保護!!
(DVD RAM有因為丟了殼而取代-+R嗎?但至少我自己重要資料都會用DVDＲＡＭ保存！這是可靠性問題)
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嗯~~~重要資料建議用DVD+R"好"片來保存
相變化材質(DVD-RAM、DVD+/-RW)的保存性是不如有機染料(DVD+/-R)....
Disc Longevity: How long will data recorded on writable DVD discs remain readable?
http://www.osta.org/technology/dvdqa/dvdqa11.htm
裡面有提到的Lifetime
DVD-RAM/DVD+/-RW：30年以上
DVD+/-R：100年
NIST做的研究...
http://www.clir.org/pubs/reports/pub121/sec1.html
4. How Long Can You Store CDs and DVDs and Use Them Again?
http://www.clir.org/pubs/reports/pub121/sec4.html
4.3 CD-RW, DVD-RW, DVD+RW, DVD-RAM Discs
RW and RAM discs are generally not considered for long-term or archival use,
and life expectancy tests are seldom done for this medium. Rewritable discs
use a phase-changing metal alloy film
for recording data and aluminum for the reflective layer. The alloy film is
not as stable as the dye used in R discs
because the material normally degrades at a faster rate...
如果要更進一步讓資料受到保護
可以考慮用這個
http://www.ice-graphics.com/ICEECC/IndexE.html