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#1
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Archival CDs and DVDs
Any advice on which archival CDs and DVDs are good;
that is, really archival? Thanks, Mike. |
#2
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Archival CDs and DVDs
"Michael D. Berger" wrote in message
... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. -- Peter |
#3
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Archival CDs and DVDs
On Tue, 25 May 2010 20:59:50 -0400, Peter wrote:
"Michael D. Berger" wrote in message ... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. Ah yes, we are, after all, finite beings -- but I would guess that some are substantially better than others. It is the names of those better ones I seek. Mike. |
#4
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Archival CDs and DVDs
"John A." wrote in message
... On 26 May 2010 02:04:46 GMT, "Michael D. Berger" wrote: On Tue, 25 May 2010 20:59:50 -0400, Peter wrote: "Michael D. Berger" wrote in message ... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. Ah yes, we are, after all, finite beings -- but I would guess that some are substantially better than others. It is the names of those better ones I seek. Cranberry claims their DiamonDisc system makes DVDs that will last 1000 years. Instead of storing the data on a dye layer, they use synthetic stone and etch deeper pits with a higher powered laser. Write-once, I would imagine. I haven't tried them. I've also read of one long-term data storage currently in the theoretical stage. They described a system of carbon nanotubes each holding an iron particle which would have a theoretical life of a billion years. I'm sure it would be great for thumb drives, and since it's the position of the iron in the tube that stores the data it would probably be easier to securely erase than magnetic systems. But a 1000-year system would probably be sufficient for most people. Even twenty years from now the equipment to read the DVD might not be readily available. Think 8 track. -- Peter |
#5
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Archival CDs and DVDs
"John A." wrote in message
... On Fri, 28 May 2010 09:50:54 -0400, "Peter" wrote: "John A." wrote in message . .. On 26 May 2010 02:04:46 GMT, "Michael D. Berger" wrote: On Tue, 25 May 2010 20:59:50 -0400, Peter wrote: "Michael D. Berger" wrote in message ... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. Ah yes, we are, after all, finite beings -- but I would guess that some are substantially better than others. It is the names of those better ones I seek. Cranberry claims their DiamonDisc system makes DVDs that will last 1000 years. Instead of storing the data on a dye layer, they use synthetic stone and etch deeper pits with a higher powered laser. Write-once, I would imagine. I haven't tried them. I've also read of one long-term data storage currently in the theoretical stage. They described a system of carbon nanotubes each holding an iron particle which would have a theoretical life of a billion years. I'm sure it would be great for thumb drives, and since it's the position of the iron in the tube that stores the data it would probably be easier to securely erase than magnetic systems. But a 1000-year system would probably be sufficient for most people. Even twenty years from now the equipment to read the DVD might not be readily available. Think 8 track. DVD readers are dirt cheap. If your data is important enough to preserve, get spares. And the DVD readers link to ? Wanna buy some 8" floppy drives ;-) -- Peter |
#6
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Archival CDs and DVDs
On 10-05-25 20:02 , Michael D. Berger wrote:
Any advice on which archival CDs and DVDs are good; that is, really archival? The "most" archival are the "gold" CD and DVD's with claimed lives in excess of 100 years in benign conditions (dark, cool, dry). However, it is best to be sure that they are manufactured in Japan or Taiwan. Those made in India have a poor reputation for edge sealing. Common CD/DVD's are good for 5 - 10 maybe 15 years in the same benign conditions. -- gmail originated posts are filtered due to spam. |
#7
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Archival CDs and DVDs
On 10-05-28 9:15 , John A. wrote:
I wonder if they are actually repackaging this product: http://www.millenniata.com/ Very interesting. Thanks -- gmail originated posts are filtered due to spam. |
#8
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Archival CDs and DVDs
On 10-05-28 9:50 , Peter wrote:
"John A." wrote in message ... On 26 May 2010 02:04:46 GMT, "Michael D. Berger" wrote: On Tue, 25 May 2010 20:59:50 -0400, Peter wrote: "Michael D. Berger" wrote in message ... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. Ah yes, we are, after all, finite beings -- but I would guess that some are substantially better than others. It is the names of those better ones I seek. Cranberry claims their DiamonDisc system makes DVDs that will last 1000 years. Instead of storing the data on a dye layer, they use synthetic stone and etch deeper pits with a higher powered laser. Write-once, I would imagine. I haven't tried them. I've also read of one long-term data storage currently in the theoretical stage. They described a system of carbon nanotubes each holding an iron particle which would have a theoretical life of a billion years. I'm sure it would be great for thumb drives, and since it's the position of the iron in the tube that stores the data it would probably be easier to securely erase than magnetic systems. But a 1000-year system would probably be sufficient for most people. Even twenty years from now the equipment to read the DVD might not be readily available. Think 8 track. Bad analogy. Unlike tape systems each new optical disk system is backward compatible. eg: bluray disk readers read DVD and CD disks (and many data formats on each). Secondly, the drive mechanisms and lasers in such readers are pretty much "age proof". Brushless DC motors last pretty much forever and the lasers almost never fail in normal use. As long as the power supplies avoid tantalum capacitors (which is becoming an industry practice), the drives can be re-activated in 10's - 100's of years, IMO. Oh, maybe the rubber drive band for the door will degrade. No biggie. -- gmail originated posts are filtered due to spam. |
#9
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Archival CDs and DVDs
On 10-05-28 9:06 , John A. wrote:
On 26 May 2010 02:04:46 GMT, "Michael D. Berger" wrote: On Tue, 25 May 2010 20:59:50 -0400, Peter wrote: "Michael D. wrote in message ... Any advice on which archival CDs and DVDs are good; that is, really archival? Thanks, Mike. None. All have limited life and must be re-archived after a period of years, which varies with the quality of the media and storage conditions. Ah yes, we are, after all, finite beings -- but I would guess that some are substantially better than others. It is the names of those better ones I seek. Cranberry claims their DiamonDisc system makes DVDs that will last 1000 years. Instead of storing the data on a dye layer, they use synthetic stone and etch deeper pits with a higher powered laser. Write-once, I would imagine. I haven't tried them. I've also read of one long-term data storage currently in the theoretical stage. They described a system of carbon nanotubes each holding an iron particle which would have a theoretical life of a billion years. I'm sure it would be great for thumb drives, and since it's the position of the iron in the tube that stores the data it would probably be easier to securely erase than magnetic systems. But a 1000-year system would probably be sufficient for most people. I just perused the NAWC China Lake report, the Millentia disk kick butt big time. They ran a very aggressive accelerated life cycle test and only the Millentia's passed. Misubishi and Verbatim were absolute failures. Delkin and MAM-A failed, but at least there was probably a lot of readable data on the disks. 25 disks ea, Mitsubishi, Verbatim 0% survival. Delkin 45% survival Millentia: 100% survival. I'm trying to get pricing from Millenntia. Just wished they did this in BluRay. A DVD doesn't hold very much and I suspect this technology doesn't lend itself to dual layer... -- gmail originated posts are filtered due to spam. |
#10
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Archival CDs and DVDs
On Fri, 28 May 2010 09:15:48 -0400, John A. wrote:
[...] I wonder if they are actually repackaging this product: http://www.millenniata.com/ How about a compromise? Perhaps not quite as reliable, but lest costly? Thanks, Mike. |
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