This thread has prompted me to ask a question that entered my head after I had seen the credits on a movie film that was on TV many years after being made. Sorry I forget what film it was but it certainly was post World War Two.

It said the film had been digitally re-mastered. I wonder what this meant and why was it necessary given that film has a very long life.

Was this the exception rather than the rule i.e. the film in question had simply been physically damaged rather than suffering an inevitable form of age deterioration?