Quote Originally Posted by Europan View Post
Considering a 1000-ft. roll of standard black-and-white film we talk about some $400 generating cost. Since that roll will last about 400 years the archiving cost per anno is $1 for it. A 1000-ft. roll of 35-mm. film contains 16,000 frames of 24 mm × 18 mm. Given a resolution of 200 line pairs per millimeter we have 17.28 Megapixel available, the roll thus holding 276.48 Gigapixel. Encoded 34.56 Gigabytes
One small pedantic point (I agree with your post whole heartedly), it's 18mm if they're shooting 4-perf. Many shoot 3-perf Super 35, which is 13.9 mm on the short side.