Saturday, June 28, 2008
"The Perils of Digital Preservation"
"Born digital information has no physical original to refer back to."
"Digital preservation is increasingly driven by the need to give wider
access to information, and often by the commercial imperative to turn that access into a revenue stream.
Preservation strategies must include a comprehensive audit trail and will almost certainly bring the IT and archivist's functions closer together.
Strategies should include the establishment of selection criteria, and investment in standards-based technologies compliant, for example, with the Public Records Office standards for records management."
Ford, P. (2003). "The perils of digital preservation." Information World Review.
http://www.vnunet.com/information-world-review/features/2084000/perils-digital-preservation
Thursday, June 26, 2008
Digital preservation: a time bomb for Digital Libraries by Margaret Hedstrom
"Digital preservation raises challenges of a fundamentally different nature which are added to the problems of preserving traditional format materials. By digital preservation, I mean the planning, resource allocation, and application of preservation methods and technologies necessary to ensure that digital information of continuing value remains accessible and usable. I intentionally use the term "continuing" rather than "permanent" value to avoid both the absolutism and the idealism that the term "permanent" implies (O'Toole). My concept of digital preservation encompasses material that begins its life in digital form as well as material that is converted from traditional to digital formats.
Recording media for digital materials are vulnerable to deterioration and catastrophic loss, and even under ideal conditions they are short lived relative to traditional format materials. Although archivists have been battling acid-based papers, thermo-fax, nitrate film, and other fragile media for decades, the threat posed by magnetic and optical media is qualitatively different. They are the first reusable media and they can deteriorate rapidly, making the time frame for decisions and actions to prevent loss is a matter of years, not decades.
More insidious and challenging than media deterioration is the problem of obsolescence in retrieval and playback technologies"
The author continues on with a section on reserch and development of digital preservation formats including storage media, migration, conversion and management tools. Read more at
http://www.uky.edu/~kiernan/DL/hedstrom.html

Monday, June 23, 2008
Digital Dark Ages
Kuny provides observations on the present environment of digital preservation to explain why we are living in what he calls the "digital dark age." Some of these are as follows:
- Enormous amounts of digital information are already lost forever.
- Many large data-sets in governments and universities world-wide have been made obsolete by changing technologies and will either be lost or subject to expensive "rescue" operations to save the information
- Unstable and unpredictable environment for the continuance of hardware and software over a long period of time represents a greater challenge than the deterioration of the physical medium
- Financial resources available for libraries and archives continue to decrease and will likely do so for the near future
- Increasingly restrictive intellectual property and licensing regimes will ensure that many materials never make it into library collections for preservation
- The challenge in preserving electronic information is not primarily a technological one, it is a sociological one.
- Corporate survival in the competitive capitalist democracy ensures the fundamental instability of hardware and software primarily because product obsolescence is key to corporate survival.
Kuny (1997) puts it quite bluntly by saying, "No one understands how to archive digital documents...Sustainable solutions to digital preservation problems are not available."(p. 4) We cannot archive the entire Internet. The key is selecting which digital resources to preserve and which ones not to preserve. To do this librarians and archivists must develop digital collection development and evaluation guidelines to assist in this process. Some other options discussed in this report are putting digital information on microfilm or printing out as documents on acid-free paper and then carrying out traditional preservation techniques. This, of course, is not an option for all digital materials.
The last issue that I will discuss from this article is the management of rights and access controls for digital objects. Kuny (1994) states that, "a library may have the rights to access and use electronic materials, but the right to preserve the materials may not be the same thing." (p. 8) Licensing and related issues are just another aspect of the complications concerned with digital preservation.
Kuny, T. (1997). "A digital dark ages? challenges in the preservation of electronic information" 63rd IFLA Council and General Conference.
Friday, June 20, 2008
Preservation efforts
Kuny, T. (1997). “A digital dark ages? Challenges in the preservation of electronic information.” 63rd IFLA Council and General Conference.
Lester, J. & Koehler, W.C. (2007). Fundamentals of Information Studies. Neal-Schuman Publishers, Inc.: NY.
Rubin, R. (2004). Foundations of Library and Information Science. (2nd ed). Neal-Schuman Publishers, Inc.: NY.
Schneider, K. (2007). “Lots of librarians can keep stuff safe.” Library Journal 132(13) p30-31
Abraham Lincoln Presidential Library Conservation Lab



Sunday, June 15, 2008
"Videotape has become the archival storage medium for dancers and choreographers and popular belief within this community has always been that information stored on magnetic media is permanent. Magnetic tape has provided a medium to record and replay our dance history at will, but magnetic media have a very limited life span and playback machines quickly become obsolete. As a result, irreplaceable tapes are in peril and the probability is real of losing forever many of the moving images that have become the collective memory of all forms of dance. The emergency is especially critical within major institutions and repositories, including all of the Coalition member institutions, where rapidly deteriorating videotapes represent a major part of many archival collections. (For example, the New York Public Library, Dance Division estimates that it holds approximately 40,000 videotapes, representing virtually every type of dance practiced throughout the world.)
With this crisis in mind, the Dance Heritage Coalition has closely monitored the development of digital technology throughout the past few years. In a report to the National Endowment for the Humanities in 1997, the Coalition identified a critical need for the preservation of moving image and audio materials, particularly for dance recorded on videotape. A Technical Advisory Group was created in 1998 to guide and inform the Coalition in these matters. Drawing upon professional expertise in moving image video migration, the group proposed using dance as a model to address the complex issues surrounding the preservation of magnetic media.
Therefore, with funds from the National Endowment for the Arts, the Coalition called a meeting in July 2002 to design an experiment to determine the most appropriate method of transferring analog videotapes to digital for preservation purposes and using a variety of dance videotapes as the testing focus. In the case of dance videotapes, the digitization process will not only conserve the original object but will reduce the further deterioration of and provide access to rare, fragile, and vulnerable materials. By setting preservation standards, the outcomes expected from this project will have enormous resonance not only for the dance community, but for every major archival institution."
You can read more about the Dance Heritage Coalition at http://www.danceheritage.org/publications/dance_video_risks.html