Wow, I did not know about this. Actually I don't care about my data in 1000 years, even if it survives that long nobody is gonna be able to read it then. If it survives 100 years, or even just 50, it would be fine by me.
Well, M-Disc is out as bluray for about 2-3 months now. That's 50 GB on double-layer with a promised 1,000 years of lifetime. A practical problem will be (for me at least) that it will be hard to sue them in 500 years if it turns out that the medium doesn't last the promised 1,000 years.
The wikipedia page has a link to an experimental evaluation of the DVD variant, which looks promising.
Edited by Ohforf sake, 13 July 2014 - 09:31 AM.