preserving access to multimedia collections
DESCRIPTION
Preserving Access to Multimedia Collections. Al Cornish, [email protected] Systems Librarian Washington State University Libraries. Preservation example – Early Washington Maps Collection. Preservation example – Early Washington Maps Collection. Bit preservation of Master TIFF files: - PowerPoint PPT PresentationTRANSCRIPT
Al Cornish, [email protected]
Systems Librarian
Washington State University Libraries
Preserving Access to Multimedia Collections
Preservation example – Early Washington Maps Collection
Master Access - Dynamic Access -StaticFormat TIFF MrSID JPEGViewable/Downloadable No Yes YesSpatial Dimensions 100% of original 100% of original 6-13% of originalSpatial Resolution 600 DPI Multi 72 DPI
Preservation example – Early Washington Maps Collection
• Bit preservation of Master TIFF files:
Online storage (RAID array, with scheduled backups)
Optical media storage (CD-R, DVD-R)
Considering outsourcing options
Preservation support – Networking
The three contributing Early Washington Maps collection libraries (University of Washington, Washington State University, Tacoma Public Library) are actively working with the National Geospatial Digital Archive (NGDA, URL http://www.ngda.org/) to support collection preservation.
Preservation support – Networking
• The National Geospatial Digital Archive (NGDA) is one of eight projects funded through the National Digital Information Infrastructure and Preservation Program (NDIIPP, URL http://www.digitalpreservation.gov/).
• The NGDA host institutions are Stanford University and the University of California-Santa Barbara.
Preservation support – Networking
• Early Washington Maps content will be contributed to the NGDA repository.
• Some issues to be resolved:
NGDA will develop technical specifications for content.
Agreements between host and contributing institutions.
• Example: OCLC/DiMeMa CONTENTdm’s Full Resolution capability
Assists with the storage and archiving of full resolution files.
Formats supported include TIFF and MrSID; JPEG2000 support also available in CONTENTdm.
Preservation support - Software
“Preservation is a collection management, or digital life cycle management, activity with a technology component but also associated policies and procedures.”
Mackenzie Smith, “Exploring Variety in Digital Collections…”, Library Trends, Summer 2005
The Preservation Task
Preservation example – WSU Oral History Project
• Public web site using CONTENTdm (URL http://www.wsulibs.wsu.edu/oralhistoryproject/)
• Content includes described, streamed audio files in RealAudio format; use of SMIL technology to create synchronized audio/transcript display
• WAV format files serve as the preservation master