the anticipated uses for 350-001 it, and the technical and financial resources available to invest in preservation initiatives. I will review some current preservation strategies beginning with the most elementary and established methods and ending with proposals that have not yet been tested.
Probably the most commonly used preservation strategy is to transfer digital information from less stable magnetic and optical media by printing page images on paper or microfilm. It seems ironic that just as libraries and 640-802 archives are discovering digital conversion as a cost-effective preservation method for certain deteriorating materials, much information that begins its life in electronic form is printed on paper or microfilm for safe, secure long-term storage. Yet, high-quality acid neutral paper can last a century or longer while archival quality microfilm is projected to last 300 years or more. Paper and microfilm have the additional advantage of requiring no special hardware or software for retrieval or viewing. Perhaps this explains why in many digital conversion projects, the digital images serve 350-030 as a complement to rather than a replacement for the original hard copy materials (Conway, 1994).
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