Preserving the sanctity of your original media has always been one of the cardinal rules of production.
In my first week of film school, I learned about work print. The original film negative is used once to make this cloned copy, then the original is locked away, presumably in a climate-controlled vault environment. The work print is used for editing, with all the scratches, tears, gouges and dirt endemic to the mechanical film editing process. The pristine original negative is only brought out at the end of the process to make printing masters, then locked away again.
When I first started shooting video, one advantage it had over film was that the tapes could be erased and reused, or . . . CONTINUE READING: Living in Oblivion: On Creating, then Destroying Your Original Video Media