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archive media - long term storage
though it is not archival media, it is a good quality media: Taiyo Yuden
media lasts 100 years in a cool dark place, shelf life of 30 years. pretty much, any regular commercial cdr is supposed to last about 5 years with normal use, exposure to light, etc. Leave it on the seat of your car and you lose the data quickly. DVDR's 30 years. Verbatim DVDR's use an AZO dye, which has a long life - exceeded 600 hours of aging whereas other mfrs did not. floppies 3 years. Archival media on the other hand, is made to withstand normal use and even some abuse. some archive media has a diamond coating to resist scratches, such as the Mitsui MAM-A gold media that comes prepackaged. Gold media is estimated to last 300 years and is used in server rooms for important stuff. http://www.mediasupply.com/mamgold.html Mitsui Silver is estimated to last 250 years - Mitsui uses their own special dye. http://www.mediasupply.com/cd-r-media-mam-a.html costs more, but if you are trying to store family photos and videos, keeping the originals around on at least silver is the way to go. if you are the type of person of lays cd's down on the dusty table (haven't we all at one time or another), and you want to prevent scratches, go for the packaged gold (with the diamond surface). -- Jim Michaels for email, edit the address |
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archive media - long term storage
Jim Michaels wrote:
though it is not archival media, it is a good quality media: Taiyo Yuden media lasts 100 years in a cool dark place, shelf life of 30 years. pretty much, any regular commercial cdr is supposed to last about 5 years with normal use, exposure to light, etc. Leave it on the seat of your car and you lose the data quickly. DVDR's 30 years. Verbatim DVDR's use an AZO dye, which has a long life - exceeded 600 hours of aging whereas other mfrs did not. floppies 3 years. Archival media on the other hand, is made to withstand normal use and even some abuse. some archive media has a diamond coating to resist scratches, such as the Mitsui MAM-A gold media that comes prepackaged. Gold media is estimated to last 300 years and is used in server rooms for important stuff. http://www.mediasupply.com/mamgold.html Mitsui Silver is estimated to last 250 years - Mitsui uses their own special dye. http://www.mediasupply.com/cd-r-media-mam-a.html costs more, but if you are trying to store family photos and videos, keeping the originals around on at least silver is the way to go. if you are the type of person of lays cd's down on the dusty table (haven't we all at one time or another), and you want to prevent scratches, go for the packaged gold (with the diamond surface). And we have a decent sample of 100 year old media to verify this. And no, if I intend to keep stuff on cd I don't leave it around on dusty shelves and I suspect those that do are the ones complaining about the reliability of cd media. If past experience is any guide, 10 years is all you need. Anybody care to buy my zip drive and media!! Dave Cohen |
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archive media - long term storage
On Wed, 16 Jan 2008 16:44:18 GMT in alt.comp.periphs.cdr, Dave Cohen
wrote, And we have a decent sample of 100 year old media to verify this. How did you get that? |
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