[MCN-L] DVD's (5 year lifetime true?)
Another vote for Ari and Paul. If you want to store digital files, go with RAID storage. Kodak has an interesting approach using "analog devices"!!! I might find the reference for you, if one of our colleagues does not come up with it earlier. Best, Gabriela Torres UDLAP On 2/12/07, Paul Marty wrote: > I would like to second Ari's point as well. > > There is almost no reason to use optical media for storage anymore. > > Go with the live RAID storage. If you cannot afford that, you can buy > several external HDs for pennies a GB. The important point is to keep > your data live. > > If you are storing your digital images on DVD, you are as good as > throwing them away -- not because of their life-span, but because of > the difficulty of keeping up with future data migration needs. > > Best, --Paul > > -- > Paul F. Marty, Ph.D. (marty at fsu.edu) > Assistant Professor, College of Information > Florida State University, Tallahassee FL 32306-2100 > http://info.fsu.edu/~pmarty > > > On Feb 12, 2007, at 10:43 AM, Jeffrey Evans wrote: > > > Susan, Yes, media can fail anytime so it is always a good idea to > > have two > > copies (preferably on two types of media.) Lifespan beyond 10 > > years is > > pointless anyway because you will most likely want to take > > advantage of > > bigger and speedier and cheaper storage devices. Don't sweat it, keep > > moving. > > > > JEFF > > > > Jeffrey Evans > > Digital Imaging Specialist > > Princeton University Art Museum > > (609) 258-8579 > > > > > > > > > > On 2/12/07 10:18 AM, "Ari Davidow" wrote: > > > >> There is _no_ assured lifetime for optical media (DVD, CD). There > >> are claims > >> that "archival quality" media last for 100 years. There is also > >> experiential > >> evidence that this is not so. Optical media may fail > >> catastrophically at any > >> time (although the odds are that a given platter will last for > >> many years). > >> If you use optical media for archival purposes, you need to be > >> created > >> multiple copies, and also need a fairly rigorous program to test > >> each copy > >> regularly (at least once a year) to look for degradation. > >> > >> Faced with this headache, we have opted for live RAID storage, with > >> additional off-site live storage--we are currently looking at > >> Amazon's S3, > >> as well as at a newer service, carbonite.com. Ultimately, we hope > >> to work > >> with a few geographically-distributed partners to back up each > >> other's work, > >> but don't yet feel that we have the experience or knowledge to be > >> confident > >> that we're ready to do that. > >> > >> ari > >> > >> On 2/12/07, Susan Fishman-Armstrong wrote: > >>> > >>> A couple of conservation questions: > >>> > >>> Our laboratory director came to me last week. He is starting to > >>> digitize > >>> his old maps on DVDs. > >>> > >>> He ran across some information that said that the lifetime of > >>> DVDs is only > >>> 5 > >>> years. Is that true? > >>> If so, what is the estimated lifespan of the gold plated DVDs? > >>> Finally, is the lifespan of DVDs shorter than CDs? > >>> > >>> Thanks, > >>> > >>> Susan > >>> > >>> + > >>> Susan Fishman-Armstrong > >>> Laboratory Coordinator > >>> Antonio J. Waring, Jr. Archaeological Laboratory > >>> University of West Georgia > >>> Carrollton, GA 30118 > >>> > >>> 678-839-6303 (office) > >>> 678-839-6306 (fax) > >>> www.westga.edu/~ajwlab/ > >>> > >>> > >>> -Original Message- > >>> From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On > >>> Behalf Of > >>> Amalyah Keshet > >>> Sent: Sunday, February 11, 2007 3:05 AM > >>> To: mcn-l at mcn.edu > >>> Subject: [MCN-L] IP SIG: Copyright at the Whitney: the > >>> Oldenburg-PicassoExhibit > >>> > >>> Interesting post at : > >>> http://wendy.seltzer.org/blog/ > >>> > >>> "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes > >>> without > >>> saying that I can't go anywhere without seeing copyright issues > >>> lurking in > >>> the background. The last room of the Whitney's "Picasso and > >>> American Art," > >>> however, forced them to the foreground..." > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> Amalyah Keshet > >>> Head of Image Resources & Copyright Management > >>> The Israel Museum, Jerusalem akeshet at imj.org.il > >>> Chair, MCN IP SIG www.mcn.edu > >>> Blog www.musematic.net > >>> > >>> ___ > >>> You are currently subscribed to mcn-l, the listserv of the Museum > >>> Computer > >>> Network (http://www.mcn.edu) > >>> > >>> To post to this list, send messages to: mcn-l at mcn.edu > >>> > >>> To unsubscribe or change mcn-l delivery options visit: > >>> http://toronto.mediatrope.com/mailman/listinfo/mcn-l > >>> > >>> > >>> ___ > >>> You are currently subscribed to mcn-l, the listserv of the Museum > >>> Computer > >>> Network (http://www.mcn.edu) > >>> > >>> To post to this list, send mes
[MCN-L] DVD's (5 year lifetime true?)
I would like to second Ari's point as well. There is almost no reason to use optical media for storage anymore. Go with the live RAID storage. If you cannot afford that, you can buy several external HDs for pennies a GB. The important point is to keep your data live. If you are storing your digital images on DVD, you are as good as throwing them away -- not because of their life-span, but because of the difficulty of keeping up with future data migration needs. Best, --Paul -- Paul F. Marty, Ph.D. (marty at fsu.edu) Assistant Professor, College of Information Florida State University, Tallahassee FL 32306-2100 http://info.fsu.edu/~pmarty On Feb 12, 2007, at 10:43 AM, Jeffrey Evans wrote: > Susan, Yes, media can fail anytime so it is always a good idea to > have two > copies (preferably on two types of media.) Lifespan beyond 10 > years is > pointless anyway because you will most likely want to take > advantage of > bigger and speedier and cheaper storage devices. Don't sweat it, keep > moving. > > JEFF > > Jeffrey Evans > Digital Imaging Specialist > Princeton University Art Museum > (609) 258-8579 > > > > > On 2/12/07 10:18 AM, "Ari Davidow" wrote: > >> There is _no_ assured lifetime for optical media (DVD, CD). There >> are claims >> that "archival quality" media last for 100 years. There is also >> experiential >> evidence that this is not so. Optical media may fail >> catastrophically at any >> time (although the odds are that a given platter will last for >> many years). >> If you use optical media for archival purposes, you need to be >> created >> multiple copies, and also need a fairly rigorous program to test >> each copy >> regularly (at least once a year) to look for degradation. >> >> Faced with this headache, we have opted for live RAID storage, with >> additional off-site live storage--we are currently looking at >> Amazon's S3, >> as well as at a newer service, carbonite.com. Ultimately, we hope >> to work >> with a few geographically-distributed partners to back up each >> other's work, >> but don't yet feel that we have the experience or knowledge to be >> confident >> that we're ready to do that. >> >> ari >> >> On 2/12/07, Susan Fishman-Armstrong wrote: >>> >>> A couple of conservation questions: >>> >>> Our laboratory director came to me last week. He is starting to >>> digitize >>> his old maps on DVDs. >>> >>> He ran across some information that said that the lifetime of >>> DVDs is only >>> 5 >>> years. Is that true? >>> If so, what is the estimated lifespan of the gold plated DVDs? >>> Finally, is the lifespan of DVDs shorter than CDs? >>> >>> Thanks, >>> >>> Susan >>> >>> + >>> Susan Fishman-Armstrong >>> Laboratory Coordinator >>> Antonio J. Waring, Jr. Archaeological Laboratory >>> University of West Georgia >>> Carrollton, GA 30118 >>> >>> 678-839-6303 (office) >>> 678-839-6306 (fax) >>> www.westga.edu/~ajwlab/ >>> >>> >>> -Original Message- >>> From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On >>> Behalf Of >>> Amalyah Keshet >>> Sent: Sunday, February 11, 2007 3:05 AM >>> To: mcn-l at mcn.edu >>> Subject: [MCN-L] IP SIG: Copyright at the Whitney: the >>> Oldenburg-PicassoExhibit >>> >>> Interesting post at : >>> http://wendy.seltzer.org/blog/ >>> >>> "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes >>> without >>> saying that I can't go anywhere without seeing copyright issues >>> lurking in >>> the background. The last room of the Whitney's "Picasso and >>> American Art," >>> however, forced them to the foreground..." >>> >>> >>> >>> >>> >>> >>> >>> Amalyah Keshet >>> Head of Image Resources & Copyright Management >>> The Israel Museum, Jerusalem akeshet at imj.org.il >>> Chair, MCN IP SIG www.mcn.edu >>> Blog www.musematic.net >>> >>> ___ >>> You are currently subscribed to mcn-l, the listserv of the Museum >>> Computer >>> Network (http://www.mcn.edu) >>> >>> To post to this list, send messages to: mcn-l at mcn.edu >>> >>> To unsubscribe or change mcn-l delivery options visit: >>> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >>> >>> >>> ___ >>> You are currently subscribed to mcn-l, the listserv of the Museum >>> Computer >>> Network (http://www.mcn.edu) >>> >>> To post to this list, send messages to: mcn-l at mcn.edu >>> >>> To unsubscribe or change mcn-l delivery options visit: >>> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >>> >> ___ >> You are currently subscribed to mcn-l, the listserv of the Museum >> Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l > > ___
[MCN-L] DVD's (5 year lifetime true?)
Susan, Yes, media can fail anytime so it is always a good idea to have two copies (preferably on two types of media.) Lifespan beyond 10 years is pointless anyway because you will most likely want to take advantage of bigger and speedier and cheaper storage devices. Don't sweat it, keep moving. JEFF Jeffrey Evans Digital Imaging Specialist Princeton University Art Museum (609) 258-8579 On 2/12/07 10:18 AM, "Ari Davidow" wrote: > There is _no_ assured lifetime for optical media (DVD, CD). There are claims > that "archival quality" media last for 100 years. There is also experiential > evidence that this is not so. Optical media may fail catastrophically at any > time (although the odds are that a given platter will last for many years). > If you use optical media for archival purposes, you need to be created > multiple copies, and also need a fairly rigorous program to test each copy > regularly (at least once a year) to look for degradation. > > Faced with this headache, we have opted for live RAID storage, with > additional off-site live storage--we are currently looking at Amazon's S3, > as well as at a newer service, carbonite.com. Ultimately, we hope to work > with a few geographically-distributed partners to back up each other's work, > but don't yet feel that we have the experience or knowledge to be confident > that we're ready to do that. > > ari > > On 2/12/07, Susan Fishman-Armstrong wrote: >> >> A couple of conservation questions: >> >> Our laboratory director came to me last week. He is starting to digitize >> his old maps on DVDs. >> >> He ran across some information that said that the lifetime of DVDs is only >> 5 >> years. Is that true? >> If so, what is the estimated lifespan of the gold plated DVDs? >> Finally, is the lifespan of DVDs shorter than CDs? >> >> Thanks, >> >> Susan >> >> + >> Susan Fishman-Armstrong >> Laboratory Coordinator >> Antonio J. Waring, Jr. Archaeological Laboratory >> University of West Georgia >> Carrollton, GA 30118 >> >> 678-839-6303 (office) >> 678-839-6306 (fax) >> www.westga.edu/~ajwlab/ >> >> >> -Original Message- >> From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On Behalf Of >> Amalyah Keshet >> Sent: Sunday, February 11, 2007 3:05 AM >> To: mcn-l at mcn.edu >> Subject: [MCN-L] IP SIG: Copyright at the Whitney: the >> Oldenburg-PicassoExhibit >> >> Interesting post at : >> http://wendy.seltzer.org/blog/ >> >> "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without >> saying that I can't go anywhere without seeing copyright issues lurking in >> the background. The last room of the Whitney's "Picasso and American Art," >> however, forced them to the foreground..." >> >> >> >> >> >> >> >> Amalyah Keshet >> Head of Image Resources & Copyright Management >> The Israel Museum, Jerusalem akeshet at imj.org.il >> Chair, MCN IP SIG www.mcn.edu >> Blog www.musematic.net >> >> ___ >> You are currently subscribed to mcn-l, the listserv of the Museum Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> >> >> ___ >> You are currently subscribed to mcn-l, the listserv of the Museum Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l
[MCN-L] DVD's (5 year lifetime true?)
HI Susan, Ari, et al, This may be a little out of date (2004), I seem to remember this issue being raised before: Journal of Research of the National Institute of Standards and Technology 517 [J. Res. Natl. Inst. Stand. Technol. 109, 517-524 (2004)] Stability Comparison of Recordable Optical Discs?A Study of Error Rates in Harsh Conditions Search google for: Longevity of Recordable Discs It was the second result -- - Ray Ray Shah - think design, inc. Web, application design, usability, training. rayshah at thinkdesign.com tel: 212.922.0952 x 212 http://www.thinkdesign.com mobile: 917.476.0952 On Feb 12, 2007, at 10:18 AM, Ari Davidow wrote: > There is _no_ assured lifetime for optical media (DVD, CD). There > are claims > that "archival quality" media last for 100 years. There is also > experiential > evidence that this is not so. Optical media may fail > catastrophically at any > time (although the odds are that a given platter will last for many > years). > If you use optical media for archival purposes, you need to be created > multiple copies, and also need a fairly rigorous program to test > each copy > regularly (at least once a year) to look for degradation. > > Faced with this headache, we have opted for live RAID storage, with > additional off-site live storage--we are currently looking at > Amazon's S3, > as well as at a newer service, carbonite.com. Ultimately, we hope > to work > with a few geographically-distributed partners to back up each > other's work, > but don't yet feel that we have the experience or knowledge to be > confident > that we're ready to do that. > > ari > > On 2/12/07, Susan Fishman-Armstrong wrote: >> >> A couple of conservation questions: >> >> Our laboratory director came to me last week. He is starting to >> digitize >> his old maps on DVDs. >> >> He ran across some information that said that the lifetime of DVDs >> is only >> 5 >> years. Is that true? >> If so, what is the estimated lifespan of the gold plated DVDs? >> Finally, is the lifespan of DVDs shorter than CDs? >> >> Thanks, >> >> Susan >> >> + >> Susan Fishman-Armstrong >> Laboratory Coordinator >> Antonio J. Waring, Jr. Archaeological Laboratory >> University of West Georgia >> Carrollton, GA 30118 >> >> 678-839-6303 (office) >> 678-839-6306 (fax) >> www.westga.edu/~ajwlab/ >> >> >> -Original Message- >> From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On >> Behalf Of >> Amalyah Keshet >> Sent: Sunday, February 11, 2007 3:05 AM >> To: mcn-l at mcn.edu >> Subject: [MCN-L] IP SIG: Copyright at the Whitney: the >> Oldenburg-PicassoExhibit >> >> Interesting post at : >> http://wendy.seltzer.org/blog/ >> >> "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes >> without >> saying that I can't go anywhere without seeing copyright issues >> lurking in >> the background. The last room of the Whitney's "Picasso and >> American Art," >> however, forced them to the foreground..." >> >> >> >> >> >> >> >> Amalyah Keshet >> Head of Image Resources & Copyright Management >> The Israel Museum, Jerusalem akeshet at imj.org.il >> Chair, MCN IP SIG www.mcn.edu >> Blog www.musematic.net >> >> ___ >> You are currently subscribed to mcn-l, the listserv of the Museum >> Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> >> >> ___ >> You are currently subscribed to mcn-l, the listserv of the Museum >> Computer >> Network (http://www.mcn.edu) >> >> To post to this list, send messages to: mcn-l at mcn.edu >> >> To unsubscribe or change mcn-l delivery options visit: >> http://toronto.mediatrope.com/mailman/listinfo/mcn-l >> > ___ > You are currently subscribed to mcn-l, the listserv of the Museum > Computer Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > >
[MCN-L] DVD's (5 year lifetime true?)
There is _no_ assured lifetime for optical media (DVD, CD). There are claims that "archival quality" media last for 100 years. There is also experiential evidence that this is not so. Optical media may fail catastrophically at any time (although the odds are that a given platter will last for many years). If you use optical media for archival purposes, you need to be created multiple copies, and also need a fairly rigorous program to test each copy regularly (at least once a year) to look for degradation. Faced with this headache, we have opted for live RAID storage, with additional off-site live storage--we are currently looking at Amazon's S3, as well as at a newer service, carbonite.com. Ultimately, we hope to work with a few geographically-distributed partners to back up each other's work, but don't yet feel that we have the experience or knowledge to be confident that we're ready to do that. ari On 2/12/07, Susan Fishman-Armstrong wrote: > > A couple of conservation questions: > > Our laboratory director came to me last week. He is starting to digitize > his old maps on DVDs. > > He ran across some information that said that the lifetime of DVDs is only > 5 > years. Is that true? > If so, what is the estimated lifespan of the gold plated DVDs? > Finally, is the lifespan of DVDs shorter than CDs? > > Thanks, > > Susan > > + > Susan Fishman-Armstrong > Laboratory Coordinator > Antonio J. Waring, Jr. Archaeological Laboratory > University of West Georgia > Carrollton, GA 30118 > > 678-839-6303 (office) > 678-839-6306 (fax) > www.westga.edu/~ajwlab/ > > > -Original Message- > From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On Behalf Of > Amalyah Keshet > Sent: Sunday, February 11, 2007 3:05 AM > To: mcn-l at mcn.edu > Subject: [MCN-L] IP SIG: Copyright at the Whitney: the > Oldenburg-PicassoExhibit > > Interesting post at : > http://wendy.seltzer.org/blog/ > > "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without > saying that I can't go anywhere without seeing copyright issues lurking in > the background. The last room of the Whitney's "Picasso and American Art," > however, forced them to the foreground..." > > > > > > > > Amalyah Keshet > Head of Image Resources & Copyright Management > The Israel Museum, Jerusalem akeshet at imj.org.il > Chair, MCN IP SIG www.mcn.edu > Blog www.musematic.net > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l >
[MCN-L] DVD's (5 year lifetime true?)
DVD/CDs are never good choices for preservation. See the following research In 2002, National Archives and Records Administration (NARA) directed a study of high density magnetic tapes life expectancy and revealed tapes can have a life expectancy of 100 years. ( http://www.archives.gov/research/electronic-records/magnetic-media-study .pdf ) The Library of Congress completed an unpublished report to study prerecorded compact discs (CD-ROMs) (citation). Both the National Institute of Standards and Technology (NIST) in 2004 (http://www.itl.nist.gov/div895/gipwg/StabilityStudy.pdf ) and Canadian Conservation Institute in 2005 published reports of life expectancies of recordable CDs (CD-Rs), rewriteable CDs (CD-RWs), and recordable DVD (DVD-Rs). There is a lot of uncertainty about the stability and longevity of optical disc and magnetic tapes. Studies shows that the stability of the optical media varied depending on the type of disc and the type of metal reflective layer used (Phthalocyanine dye is the best). All the studies show that higher deterioration for optial and magentic media, when exposure to high temperature and humidity condition My personal experience with DVDs is not a good one. 2 of 34 DVDs I received from Vendor for digitization went bad after receiving them. In addition, I do not think 2 copies are enough. We maintain at least 4 copies. Yan Han Systems Librarian The University of Arizona Libraries -Original Message- From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of Paul Marty Sent: Monday, February 12, 2007 9:51 AM To: Museum Computer Network Listserv Subject: Re: [MCN-L] DVD's (5 year lifetime true?) I would like to second Ari's point as well. There is almost no reason to use optical media for storage anymore. Go with the live RAID storage. If you cannot afford that, you can buy several external HDs for pennies a GB. The important point is to keep your data live. If you are storing your digital images on DVD, you are as good as throwing them away -- not because of their life-span, but because of the difficulty of keeping up with future data migration needs. Best, --Paul -- Paul F. Marty, Ph.D. (marty at fsu.edu) Assistant Professor, College of Information Florida State University, Tallahassee FL 32306-2100 http://info.fsu.edu/~pmarty On Feb 12, 2007, at 10:43 AM, Jeffrey Evans wrote: > Susan, Yes, media can fail anytime so it is always a good idea to > have two > copies (preferably on two types of media.) Lifespan beyond 10 years > is pointless anyway because you will most likely want to take > advantage of bigger and speedier and cheaper storage devices. Don't > sweat it, keep moving. > > JEFF > > Jeffrey Evans > Digital Imaging Specialist > Princeton University Art Museum > (609) 258-8579 > > > > > On 2/12/07 10:18 AM, "Ari Davidow" wrote: > >> There is _no_ assured lifetime for optical media (DVD, CD). There are >> claims that "archival quality" media last for 100 years. There is >> also experiential evidence that this is not so. Optical media may >> fail catastrophically at any time (although the odds are that a given >> platter will last for many years). >> If you use optical media for archival purposes, you need to be >> created multiple copies, and also need a fairly rigorous program to >> test each copy regularly (at least once a year) to look for >> degradation. >> >> Faced with this headache, we have opted for live RAID storage, with >> additional off-site live storage--we are currently looking at >> Amazon's S3, as well as at a newer service, carbonite.com. >> Ultimately, we hope to work with a few geographically-distributed >> partners to back up each other's work, but don't yet feel that we >> have the experience or knowledge to be confident that we're ready to >> do that. >> >> ari >> >> On 2/12/07, Susan Fishman-Armstrong wrote: >>> >>> A couple of conservation questions: >>> >>> Our laboratory director came to me last week. He is starting to >>> digitize his old maps on DVDs. >>> >>> He ran across some information that said that the lifetime of DVDs >>> is only >>> 5 >>> years. Is that true? >>> If so, what is the estimated lifespan of the gold plated DVDs? >>> Finally, is the lifespan of DVDs shorter than CDs? >>> >>> Thanks, >>> >>> Susan >>> >>> + >>> Susan Fishman-Armstrong >>> Laboratory Coordinator >>> Antonio J. Waring, Jr. Archaeological Laboratory University of West >>> Georgia Carrollton, GA 30118 >>
[MCN-L] DVD's (5 year lifetime true?)
Another interesting viewpoint. Barbara Stokes Curator of Archives and Collections Museum of South Texas History 121 E. McIntyre Edinburg, TX 78541 bstokes at mosthistory.org 956/383-6911 -Original Message- From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of Gaby Torres Sent: Monday, February 12, 2007 10:05 AM To: Museum Computer Network Listserv Subject: Re: [MCN-L] DVD's (5 year lifetime true?) Dear Susan, The lifespan of polycarbonate discs, with silver/silver alloy data layer, and "commercial" dye (aka CDs, DVDs, etc). is "on real practice", with much luck 17 -20 years. Oxidizing processes of silver and/or alloy and dye is very fast. It has been theoretical predicted that with proper and careful conservation practices CDs might last hundred years. But unfortunately... There are new technologies (blue ray recording), gold layer discs, but that will rise your costs enormously. There are also other considerations tobe taken when digitizing, such as: compatibility, data lost on transfering information (due to file compression formats and data coding formats), migration to new hardware platforms, etc. For my money, I will keep my maps... Undergoing a digitizing initiative is not an easy decision. You will then have to take care of those discs, and believe me, they require much more care that ancient books. Best, Gabriela Torres Digital Libraries Researcher Universidad de las Americas - Puebla Mexico On 2/12/07, Susan Fishman-Armstrong wrote: > A couple of conservation questions: > > Our laboratory director came to me last week. He is starting to digitize > his old maps on DVDs. > > He ran across some information that said that the lifetime of DVDs is only 5 > years. Is that true? > If so, what is the estimated lifespan of the gold plated DVDs? > Finally, is the lifespan of DVDs shorter than CDs? > > Thanks, > > Susan > > + > Susan Fishman-Armstrong > Laboratory Coordinator > Antonio J. Waring, Jr. Archaeological Laboratory > University of West Georgia > Carrollton, GA 30118 > > 678-839-6303 (office) > 678-839-6306 (fax) > www.westga.edu/~ajwlab/ > > > -Original Message- > From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On Behalf Of > Amalyah Keshet > Sent: Sunday, February 11, 2007 3:05 AM > To: mcn-l at mcn.edu > Subject: [MCN-L] IP SIG: Copyright at the Whitney: the > Oldenburg-PicassoExhibit > > Interesting post at : > http://wendy.seltzer.org/blog/ > > "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without > saying that I can't go anywhere without seeing copyright issues lurking in > the background. The last room of the Whitney's "Picasso and American Art," > however, forced them to the foreground..." > > > > > > > > Amalyah Keshet > Head of Image Resources & Copyright Management > The Israel Museum, Jerusalem akeshet at imj.org.il > Chair, MCN IP SIG www.mcn.edu > Blog www.musematic.net > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > ___ You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) To post to this list, send messages to: mcn-l at mcn.edu To unsubscribe or change mcn-l delivery options visit: http://toronto.mediatrope.com/mailman/listinfo/mcn-l
[MCN-L] DVD's (5 year lifetime true?)
Dear Susan, The lifespan of polycarbonate discs, with silver/silver alloy data layer, and "commercial" dye (aka CDs, DVDs, etc). is "on real practice", with much luck 17 -20 years. Oxidizing processes of silver and/or alloy and dye is very fast. It has been theoretical predicted that with proper and careful conservation practices CDs might last hundred years. But unfortunately... There are new technologies (blue ray recording), gold layer discs, but that will rise your costs enormously. There are also other considerations tobe taken when digitizing, such as: compatibility, data lost on transfering information (due to file compression formats and data coding formats), migration to new hardware platforms, etc. For my money, I will keep my maps... Undergoing a digitizing initiative is not an easy decision. You will then have to take care of those discs, and believe me, they require much more care that ancient books. Best, Gabriela Torres Digital Libraries Researcher Universidad de las Americas - Puebla Mexico On 2/12/07, Susan Fishman-Armstrong wrote: > A couple of conservation questions: > > Our laboratory director came to me last week. He is starting to digitize > his old maps on DVDs. > > He ran across some information that said that the lifetime of DVDs is only 5 > years. Is that true? > If so, what is the estimated lifespan of the gold plated DVDs? > Finally, is the lifespan of DVDs shorter than CDs? > > Thanks, > > Susan > > + > Susan Fishman-Armstrong > Laboratory Coordinator > Antonio J. Waring, Jr. Archaeological Laboratory > University of West Georgia > Carrollton, GA 30118 > > 678-839-6303 (office) > 678-839-6306 (fax) > www.westga.edu/~ajwlab/ > > > -Original Message- > From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On Behalf Of > Amalyah Keshet > Sent: Sunday, February 11, 2007 3:05 AM > To: mcn-l at mcn.edu > Subject: [MCN-L] IP SIG: Copyright at the Whitney: the > Oldenburg-PicassoExhibit > > Interesting post at : > http://wendy.seltzer.org/blog/ > > "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without > saying that I can't go anywhere without seeing copyright issues lurking in > the background. The last room of the Whitney's "Picasso and American Art," > however, forced them to the foreground..." > > > > > > > > Amalyah Keshet > Head of Image Resources & Copyright Management > The Israel Museum, Jerusalem akeshet at imj.org.il > Chair, MCN IP SIG www.mcn.edu > Blog www.musematic.net > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > > > ___ > You are currently subscribed to mcn-l, the listserv of the Museum Computer > Network (http://www.mcn.edu) > > To post to this list, send messages to: mcn-l at mcn.edu > > To unsubscribe or change mcn-l delivery options visit: > http://toronto.mediatrope.com/mailman/listinfo/mcn-l >
[MCN-L] DVD's (5 year lifetime true?)
A couple of conservation questions: Our laboratory director came to me last week. He is starting to digitize his old maps on DVDs. He ran across some information that said that the lifetime of DVDs is only 5 years. Is that true? If so, what is the estimated lifespan of the gold plated DVDs? Finally, is the lifespan of DVDs shorter than CDs? Thanks, Susan + Susan Fishman-Armstrong Laboratory Coordinator Antonio J. Waring, Jr. Archaeological Laboratory University of West Georgia Carrollton, GA 30118 678-839-6303 (office) 678-839-6306 (fax) www.westga.edu/~ajwlab/ -Original Message- From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of Amalyah Keshet Sent: Sunday, February 11, 2007 3:05 AM To: mcn-l at mcn.edu Subject: [MCN-L] IP SIG: Copyright at the Whitney: the Oldenburg-PicassoExhibit Interesting post at : http://wendy.seltzer.org/blog/ "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without saying that I can't go anywhere without seeing copyright issues lurking in the background. The last room of the Whitney's "Picasso and American Art," however, forced them to the foreground..." Amalyah Keshet Head of Image Resources & Copyright Management The Israel Museum, Jerusalem akeshet at imj.org.il Chair, MCN IP SIG www.mcn.edu Blog www.musematic.net ___ You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) To post to this list, send messages to: mcn-l at mcn.edu To unsubscribe or change mcn-l delivery options visit: http://toronto.mediatrope.com/mailman/listinfo/mcn-l
[MCN-L] DVD's (5 year lifetime true?)
Susan, Here's a 2005 article on the subject: "The Relative Stabilities of Optical Disc Formats" http://www.uni-muenster.de/Forum-Bestandserhaltung/downloads/iraci.pdf Robert __ Robert L. Weiner Consulting Strategic Technology Advisors to Nonprofit and Educational Institutions San Francisco, CA robert at rlweiner.com 415/643-8955 www.rlweiner.com -Original Message- From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of Susan Fishman-Armstrong Sent: Monday, February 12, 2007 5:43 AM To: 'Museum Computer Network Listserv' Subject: [MCN-L] DVD's (5 year lifetime true?) A couple of conservation questions: Our laboratory director came to me last week. He is starting to digitize his old maps on DVDs. He ran across some information that said that the lifetime of DVDs is only 5 years. Is that true? If so, what is the estimated lifespan of the gold plated DVDs? Finally, is the lifespan of DVDs shorter than CDs? Thanks, Susan + Susan Fishman-Armstrong Laboratory Coordinator Antonio J. Waring, Jr. Archaeological Laboratory University of West Georgia Carrollton, GA 30118 678-839-6303 (office) 678-839-6306 (fax) www.westga.edu/~ajwlab/ -Original Message- From: mcn-l-bounces at mcn.edu [mailto:mcn-l-boun...@mcn.edu] On Behalf Of Amalyah Keshet Sent: Sunday, February 11, 2007 3:05 AM To: mcn-l at mcn.edu Subject: [MCN-L] IP SIG: Copyright at the Whitney: the Oldenburg-PicassoExhibit Interesting post at : http://wendy.seltzer.org/blog/ "Copyright at the Whitney: the Oldenburg-Picasso Exhibit It goes without saying that I can't go anywhere without seeing copyright issues lurking in the background. The last room of the Whitney's "Picasso and American Art," however, forced them to the foreground..." Amalyah Keshet Head of Image Resources & Copyright Management The Israel Museum, Jerusalem akeshet at imj.org.il Chair, MCN IP SIG www.mcn.edu Blog www.musematic.net ___ You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) To post to this list, send messages to: mcn-l at mcn.edu To unsubscribe or change mcn-l delivery options visit: http://toronto.mediatrope.com/mailman/listinfo/mcn-l ___ You are currently subscribed to mcn-l, the listserv of the Museum Computer Network (http://www.mcn.edu) To post to this list, send messages to: mcn-l at mcn.edu To unsubscribe or change mcn-l delivery options visit: http://toronto.mediatrope.com/mailman/listinfo/mcn-l
