Retrosonic wrote:Look, I'm a film lover too, but to say that archiving on film is better is just a false statement.
Digital files are nothing but ones and zeroes that some sort of computer circuit and/or software needs to know how to reconstruct into picture, sound, words, or data. When some of those ones and zeroes manage to become switched around through corruption, the data becomes garbage and unrecognizable and the whole file is often lost. I've got digital files from 20 years ago that are fine and have had other digital files become corrupted after only a few months. I have one computer whose hard drive is still going strong after 12 years and another one that got the "click of death" after six years and all the data that was not backed up is now gone. Another hard disk died within four or five years and all of its data is now lost. A video-editing RAID failed within two years, halfway through editing a feature-length movie with everything lost, but luckily the video was shot on tape and not on a hard-drive or flashcard camcorder, so all the tapes could be re-captured to a new hard drive and the project started over again (that was a decade ago, and I haven't checked the tapes since -- I hope they're still playable and that my camcorder continues to function, as the model and format have been discontined for several years now). The standards for 35mm movie film have remained virtually unchanged in over 115 years. A brand new projector can play film from a century ago (if it's not too shrunken or damaged) and a century-old projector can run brand new 35mm film just fine. Film contains an actual photographic picture you can see, and the soundtrack is an image of the audio wave. If they get scratched or dirty or pieces get damaged or cut out, the image and sound get degraded, but they are still there. Analog copies are the only reliable means of archiving anything.
Actually archiving on high-quality linen-based paper would seem to be more practical in the long run than archiving on film (although polyester film seems far more promising than acetate or nitrate). We have paper that is hundreds of years old and still in fine flexible condition and its contents can be seen and read by anyone. The original 109-year-old 35mm nitrate negative to THE GREAT TRAIN ROBBERY still survives. Videotape from 50 years ago may or may not be readable on specialized machines in very few places. Have you seen any computers lately with floppy disk drives that read 8-inch disks or even 5 1/4-inch disks? Digital audio and video are incredibly convenient, quick, and flexible formats for working with, especially for editing, restoration, and adding various special effects, but no digital formats are reliable as archival media. A high-resolution digital intermediate with all the corrections and special effects desired by the filmmakers must be exported to a high-resolution film printer to make a 35mm film negative to assure anything close to longevity. And the last I heard, it's still faster to make film prints from film negatives than to output film-quality digital files directly to film. Most movie theatres have been using projectors that were actualy built 40-60 years ago, even recently-constructed theatres that purchase reconditioned equipment. At the present rate of digital technological changes and improvements, how many theatres converting to digital projection will be able to be using the same projectors they install this year in 2072 do you think? But 35mm film will still be able to run on the classic Simplex and Century projectors built in the 1940s, 50s, and 60s (many of which are currently operating) with the minor audio modifications added in the 1970s, 80s, and 90s for optical stereo and digital sound.
One more thing worth remembering: digital files not only require computers, but require electrical power. Moving picture film can be seen through completely mechanical means, projected with non-electrical light sources, and sound (on disk, at any rate) can also be reproduced by purely mechanical and acoustic means. Optical sound will of course need a light source and photo-electric sensor with amplification, but people in the distant future with any understanding of elementary physics should still be able to figure it out fairly easily. It may not be "state of the art" but it will work and is something that any intelligent archeologist 2000 years from now can figure out just by looking at it. Digital files, if the recordings happen to remain intact, as amazingly and impressively accurate as the encoded picture and sound may be, are a randomly arbitrary jigsaw puzzle of identical square pieces either black or white with no instructions. Good luck with that.