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Sony DVM-63HD HDV Cassette (63 Minutes). B&H Foto & Electronics Corp. Accessed February 23, 2021. |
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MiniDV cassettes for DV and HDV recording. Wikipedia the Free Encyclopedia. Accessed February 23, 2021. |
Physical Characteristics
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Types of damage and deterioration
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Binder deterioration
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"1.1.3. Inspect for damage / Look for chemical deterioration / Binder degradation". In Audio Tape Digitisation Workflow. Accessed February 22, 2021. |
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Flaking/missing magnetic oxide particles are an indication of tape deterioration. This type of drop-out cannot be corrected physically.
Mould
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Are Your Video Tapes Showing Bad Signs of Mould. MultiMedia Select. Accessed February 24, 2021. |
Description
Active mould is generally moist while dormant mould is dry and dusty. Mould growths may be white, black, brown or mustard-coloured and usually have a pattered, fuzzy, or thread-like appearance. Mould can cause permanent damage to tapes over time if not removed. Fungus and mould is also a significant health hazard and affected materials should be handled using gloves and masks.
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Mouldy tapes should be isolated from unaffected materials to prevent cross contamination. Store tapes at a temperature of 24°C in an environment with effective air circulation and less than 50% Relative Humidity. Loose mold can be vacuumed from the tape pack and then the tape should be treated with an appropriate fungicide.
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Stretching and breaking
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Figure 20. Wrinkled VHS tape. Caring for audio, video and data recording media. Government of Canada, Canadian Conservation Institute. June 30, 2020. |
Cause
Stretching and breaking of video tape usually results from improper handling or use of playback equipment.
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Stretching can distort the tape signal however data can usually be recovered (with a decrease in signal quality).
Accidental recording
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Record Protection Mechanisms: MiniDV. Preservation Self Assessment Program. Accessed February 24, 2021. |
Description
Camera operators can accidentally record over pre-existing footage
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- Section 9.0 - Outsourced digitization of audiovisual items
- Appendix C - Technical specifications for moving images
University Archives Procedure Manual
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Visit the /wiki/spaces/ALC/overview for further reading on /wiki/spaces/ALC/pages/1891631115.
References
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AMIA. "Video Preservation Factsheets." Accessed December 10, 2020.
Avid. "Working With HDV." Accessed February 3, 2021.
Bensinger, Charles. "Chapter 6: All about videotape." In The Video Guide, Second Edition, 71-75. Santa Barbara, California: Video-Info Publications, 1981.
Bogart, John Van. "What Can Go Wrong With Magnetic Media?" In Magnetic Tape Storage and Handling: A Guide for Libraries and Archives. Washington, DC: The Commission on Preservation and Access, 1995.
Casey, Mike. "FACET: Format characteristics and preservation problems." Bloomington, IN: Indiana University, 2007.
Gibson, Gerald. D. "Magnetic tape deterioration: recognition, recovery and prevention." Paper presented at the IASA Conference, Perugia, August 26, 1996.
MediaCollege.com. "The HDV Video Format." Accessed February 3, 2021.
Museum of Obsolete Media. "HDV (2003 – 2011)." Accessed February 3, 2021.
Preservation Self Assessment Program. "Videotape: HDV." University of Illinois at Urbana-Champaign. Accessed February 3, 2021
Wheeler, Jim. "Videotape preservation handbook." 2002.
Version history
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