Monday, July 21, 2008

Family videotape treasures at risk

A virulent infection is destroying the audio and videotapes once used to capture important moments of family life and great historic events. The fungal blight, or 'tape mould', has already ruined thousands of miles of audio and video tape in Britain and, according to specialist restorers, much more is likely to be deteriorating, unobserved, in storage. The infection of VHS cassettes and of the audio cassettes popular in the 1980s and 1990s is increasing at an alarming rate.

'We used to get around one or two cases a year, and now about 10 per cent of all the work that is sent to us is mouldy. But sadly there is nothing we can do about it here,' said Chris Frear, who runs a restoration business in Scotland.

The wet summers of the last three years have taken the problem to epidemic proportions.



'It has got to the stage that we open up all the packages of tapes we are sent in a separate room, away from our playing equipment and then we wash and disinfect our hands, because it is so contagious. If it got on to the tape heads in our machines, it would spread everywhere. It's almost like the measles.'

Video and audio tape is made from cellulose coated with ferric oxide, but, just like the sticky tape on an old parcel, it dries out and becomes brittle with age. Modern techniques can combat this ageing process, allowing the tapes to be digitally copied, but mould that has eaten into a tape is defeating conservationists. Typically tapes with the fatal fungus look as if they are covered with a fine white dust.

'Mould is a much more serious thing than snapped or worn tapes, and it's heartbreaking to have to ring up a customer who was so thrilled to have at last found a missing tape, just to tell them its unplayable,' said Beth Frear, who works with her son in their family business, Precious Voices, based in Dumfries and Galloway.

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