/3/ - 3DCG

>>629182
The only way to 100% reliably archive any digital media is to convert it to an analogue format. This includes music. For reference, there are albums made in the 1990s on DAT whose master tapes are now unplayable because the way the DAT media they were recorded on degraded. Those albums are gone forever and any reissues of them will have to be made from second generation sources. If those masters had been transferred to standard 2" analogue audio tape they would be ok.
Same goes for any digital moving image work - the only way the source can be reliably archived for generations is to transfer it to film; a 35mm negative has a molecular resolution depth equivalent to a 6k render so unless you're rendering at 8k there is a *lot* of resolution overhead available.
A case that proves my point was the Star Trek TNG Blu-Ray remaster: TNG was shot on 35mm film, and the negatives of all the live action were spliced together in editing the old fashioned way, with razors and splicing tape. The CGI sequences, however, were never transferred to film - they were printed to standard 1990s broadcast TV resolution video tape, (approx 0.5k). along with a transfer of the film edit and this was the tape that was then broadcast. So, when it came to remastering for 4K - the 35mm just needed to be scanned, the CGI sequences, however, needed to be completely remade from scratch. The original CGI project files and software were long, long gone.
Again - if the CGI had been preserved on a archival quality analogue format, it wouldn't have been an issue.

The other alternative is, I guess, - 8bit paper punch tape. (Pic related). You'd need 4; one for the R, B, G and A channels. And I'd guess several warehouses to store the reels for around 10 seconds of animation.