Microsoft has demoed some cool technology where they store data in glass, Project Silica. Sadly, it seems unlikely this will ever be available to consumers. One neat aspect of the design is that writing data is significantly higher power than reading. So you can keep your writing devices physically separated from the readers and have no fear that malicious code could ever overwrite existing data plates.
Some blurbs
Project Silica is developing the world’s first storage technology designed and built from the media up to address humanity’s need for a long-term, sustainable storage technology. We store data in quartz glass: a low-cost, durable WORM media that is EMF-proof, and offers lifetimes of tens to hundreds of thousands of years. This has huge consequences for sustainability, as it means we can leave data in situ, and eliminate the costly cycle of periodically copying data to a new media generation.
We’re re-thinking how large-scale storage systems are built in order to fully exploit the properties of the glass media and create a sustainable and secure storage system to support archival storage for decades to come! We are co-designing the hardware and software stacks from scratch, from the media all the way up to the cloud user API. This includes a novel, low-power design for the media library that challenges what the robotics and mechanics of archival storage systems look like.
https://www.microsoft.com/en-us/research/project/project-sil...