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Most remedial treatment for gramaphone/phonograph recordings
must focus on cleaning and general care. In handling
discs, the surface should not be touched, and it must
not come into contact with any surface other than the
turntable equipment and the protective sleeve. The radical
cleaning of discs, a problematic, controversial process,
should be limited to gentle dry surface dusting with
a soft cloth in the direction of the grooves. (See http://palimpsest.stanford.edu/byauth/st-laurent/care.html
for a technical discussion of this subject.)
Basic remedial treatment for audio and video tape is
also problematic. Detailed information on treatment
can be found at http://www.nml.org/publications/presentations/disasterrecovery/.
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