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#31
September 22nd 04, 05:15 PM
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"Neil Gould" wrote in message link.net... Archiving of any physical object is a challenge, as entropy is a constant. But, beyond the physical degradation that will affect digital media as well as film, you have many other factors. Obsolescence of the media, obsolescence of the media's format (8" floppies are less than 30 years old), and obsolescence of the data format also work against reliable archiving with digital media. Didn't we all think that digital images would be archival, when digital first came out? Kodak's website pointed out that their Photo CD's had an expected life of 100 years--and that one would be able to copy that CD in 100 years and have a clone that would last yet ANOTHER 100 years . . . ad infinitum. I have been reading that PhotoCd that Kodak developed has now been discontinued. The proprietary ImagePac format has fallen into disuse, in favor of TIF. It seems to be only a matter of time before editing software will no longer support reading ImagePac formatted files. THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. It requires nothing other than a light source and a magnifying lens to read it. Its contents will never become unreadable because of file format or media obsolescence. How ironic! 
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#32
September 22nd 04, 05:18 PM
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"Jeremy" wrote in message link.net... "Neil Gould" wrote in message link.net... Archiving of any physical object is a challenge, as entropy is a constant. But, beyond the physical degradation that will affect digital media as well as film, you have many other factors. Obsolescence of the media, obsolescence of the media's format (8" floppies are less than 30 years old), and obsolescence of the data format also work against reliable archiving with digital media. Didn't we all think that digital images would be archival, when digital first came out? Kodak's website pointed out that their Photo CD's had an expected life of 100 years--and that one would be able to copy that CD in 100 years and have a clone that would last yet ANOTHER 100 years . . . ad infinitum. I have been reading that PhotoCd that Kodak developed has now been discontinued. The proprietary ImagePac format has fallen into disuse, in favor of TIF. It seems to be only a matter of time before editing software will no longer support reading ImagePac formatted files. THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. It requires nothing other than a light source and a magnifying lens to read it. Its contents will never become unreadable because of file format or media obsolescence. How ironic! Unless it has Bush service records on it.
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#33
September 22nd 04, 05:18 PM
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"Jeremy" wrote in message link.net... "Neil Gould" wrote in message link.net... Archiving of any physical object is a challenge, as entropy is a constant. But, beyond the physical degradation that will affect digital media as well as film, you have many other factors. Obsolescence of the media, obsolescence of the media's format (8" floppies are less than 30 years old), and obsolescence of the data format also work against reliable archiving with digital media. Didn't we all think that digital images would be archival, when digital first came out? Kodak's website pointed out that their Photo CD's had an expected life of 100 years--and that one would be able to copy that CD in 100 years and have a clone that would last yet ANOTHER 100 years . . . ad infinitum. I have been reading that PhotoCd that Kodak developed has now been discontinued. The proprietary ImagePac format has fallen into disuse, in favor of TIF. It seems to be only a matter of time before editing software will no longer support reading ImagePac formatted files. THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. It requires nothing other than a light source and a magnifying lens to read it. Its contents will never become unreadable because of file format or media obsolescence. How ironic! Unless it has Bush service records on it.
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#34
September 22nd 04, 05:24 PM
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Stacey wrote in message ...
All my film cameras are going on ebay tonight and I'm buying the newest digital camera I can find, which one is the best this week? ... No, wait!! Yes, wait until NEXT week and there'll be a better one. No,... wait ... sigh
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#35
September 22nd 04, 06:06 PM
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In article .net, Jeremy
wrote: THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. How does anyone know? Was Leonardo da Vinci secretly copying his work on to microfilm strips, perhaps? Roger
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#36
September 22nd 04, 06:10 PM
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Roger Whitehead wrote:
In article .net, Jeremy wrote: THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. How does anyone know? Was Leonardo da Vinci secretly copying his work on to microfilm strips, perhaps? Archimedes did, but they turned to dust about 2000 years ago. -- John McWilliams
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#37
September 22nd 04, 06:10 PM
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Roger Whitehead wrote:
In article .net, Jeremy wrote: THE longest-lasting archival system still appears to be good old Microfilm! Properly stored, it has a life in excess of 500 years. How does anyone know? Was Leonardo da Vinci secretly copying his work on to microfilm strips, perhaps? Archimedes did, but they turned to dust about 2000 years ago. -- John McWilliams
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#38
September 22nd 04, 06:22 PM
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In article Oli4d.85251$MQ5.13018@attbi_s52, John McWilliams wrote:
Archimedes did, but they turned to dust about 2000 years ago. Screwed that up, then. Roger
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#39
September 22nd 04, 06:54 PM
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"Bob Salomon" wrote in message
Then just how do you maintain cold dark storage at a constant humidity? The only demonstrated method is to put it inside a pyramid. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. Remove spaces etc. to reply: n o lindan at net com dot com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/
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#40
September 22nd 04, 06:56 PM
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"Jeremy" wrote
THE longest-lasting archival system still appears to be good old Microfilm! Nope. Ochre, chalk and charcoal on a cave wall. Papyrus works pretty well. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. Remove spaces etc. to reply: n o lindan at net com dot com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/
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