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How Long Can You Store CDs and DVDs and Use Them Again?

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  How Long Can You Store CDs and DVDs and Use Them Again? rami18 <coco@coco.com> - 2017-07-25 16:27 -0400
    Re: How Long Can You Store CDs and DVDs and Use Them Again? Ed Prochak <edprochak@gmail.com> - 2017-07-26 20:13 -0700

#7941 — How Long Can You Store CDs and DVDs and Use Them Again?

Hello...

Read this:

How Long Can You Store CDs and DVDs and Use Them Again?

I have read on internet that Life expectancy of USB Flash memory under 
the recommended storage conditions is around 10 years.

But i don't think that USB flash memory can replace DVD-R discs that 
should have a life expectancy of 100 years to 200 years or more.


Please read the following:

"Manufacturers tend to use this premise to estimate media longevity. 
They test discs by using accelerated aging methodologies with controlled 
extreme temperature and humidity influences over a relatively short 
period of time. However, it is not always clear how a manufacturer 
interprets its measurements for determining a disc's end of life. Among 
the manufacturers that have done testing, there is consensus that, under 
recommended storage conditions, CD-R, DVD-R, and DVD+R discs should have 
a life expectancy of 100 to 200 years or more; CD-RW, DVD-RW, DVD+RW, 
and DVD-RAM discs should have a life expectancy of 25 years or more. 
Little information is available for CD-ROM and DVD-ROM discs (including 
audio and video), resulting in an increased level of uncertainty for 
their life expectancy. Expectations vary from 20 to 100 years for these 
discs."

Read more here:

https://www.clir.org/pubs/reports/pub121/sec4.html



Thank you,
Amine Moulay Ramdane.

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#7947

On Tuesday, July 25, 2017 at 4:27:15 PM UTC-4, rami18 wrote:
> Hello...
> 
> Read this:
> 
> How Long Can You Store CDs and DVDs and Use Them Again?
> 
> I have read on internet that Life expectancy of USB Flash memory under 
> the recommended storage conditions is around 10 years.
> 
> But i don't think that USB flash memory can replace DVD-R discs that 
> should have a life expectancy of 100 years to 200 years or more.
> 
[]
Well, different storage lifetimes, require different media.
I just listened to a TED talk earlier today. Based on that,
I'd say the longest term storage use so far is charcoal
on the wall of a cave. About 8,000 years and it's still there.

Hardcopy (i.e., paper printouts) sealed in a clay jar stored
in a desert cave is a possible alternative.

ed
---
The Duck tape company would like
to remind you that in the long run
all solutions are temporary.  8^)

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