Allegedly M-Disc optical media are good for ~1 thousand years if stored properly. This assumes you can find an appropriate optical media reader (M-Disc use a mi

Allegedly M-Disc optical media are good for ~1 thousand years if stored properly. This assumes you can find an appropriate optical media reader (M-Disc use a mineral layer instead of dye so you need a far stronger laser to burn the disc, but should be able to read it with a standard reader), and have support for the file systems and media formats stored on the media. I wouldn't think ISO 9660 or JPEG would become lost knowledge in that timeframe, and presumably the tech level in the future will be high enough that reconstructing a dvd or blu-ray drive from a general understanding of the principles involved would not be insurmountable.