Longevity of DVD-R and CD-R (Was MagTapes)
eric at brouhaha.com
Mon Mar 14 16:47:05 CST 2005
> It was my understanding (perhaps wrong?) that RW media uses a phase
> change to store the data, and that it takes significantly more energy
> to induce the phase change than to induce a chemical change in dye
> for write-once media. That's why it can't be written as quickly.
> If it really works that way, one would reasonably expect RW media to
> have *better* longevity than write-once media.
> Based on my experience, this isn't true by a longshot.
I'm not disputing your experience or those of others. I'm just trying
to understand *why* it has poor longevity, when the scant information
I have about how it works suggests that it should be better.
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