70% of all audio-visual material is under the threat of deterioration, damage or obsolescence. From about 1950 through the 1990s, most of the world’s audio-visual was entrusted to analogue magnetic recording tape for archival storage.
Now that analogue magnetic tape has moved into a niche archival market, that we at Oxford Duplication Centre specialise in, it is time to reflect and realise that it is time to start worrying about the remaining lifetime of existing tapes.
Video tapes are fundamentally composed of three layers:
1. the binder layer – magnetic particles responsible for signal quality
2. the substrate – stability, strength and friction support
3. the backing – stability, strength and friction support
Corporate and consumer tapes all share one thing in common: they are magnetic media. There are many ways tape can deteriorate:
• Magnetic particles may accidentally demagnetise. This can be from storing too near a magnetic source or even from the playback machine itself.
• The lubricant in the binder layer is used up. With each playback it erodes, the binder layer itself takes on more wear, which can directly cause information loss.
• The binder layer can become a sticky and unplayable. The binder’s polymers will absorb water eventually delaminate. Typically called sticky-shed syndrome. Playing a tape in this condition will damage both tape and the playback machine.
• The backing and substrate can become stretched. Multiple rewinding’s and playback. This causes tracking errors that can dramatically reduce playback quality.
Fortunately, at Oxford Duplication Centre we hold some of the rarest tape machines which are serviced and maintained by our experienced team.
Oxford Duplication Centre
Corporate, Consumer and Heritage Digitisation
29 Banbury Road Kidlington Oxfordshire OX5 1AQ
Tel: 01865 457000
Current opening hours: Monday to Friday 10-3pm by appointment only
ADDITIONAL TAGS: #ARCHIVE DUPLICATION #ARCHIVING #AUDIOVISUAL #BROADCAST TAPES #CONVERTING #DIGITISATION #DUPLICATION #FAMILYTAPES #HERITAGE DUPLICATION #TAPES TO PRO-RES #VIDEOTAPES
Oxford Duplication Centre Corporate, Heritage and Consumer Digitisation Services within Audio Video Film Image and Text. Oxford duplication Centre