These guys need to talk to the Long Now Foundation (http://longnow.org/). They've been thinking about long term data storage for years - and their solution is human readable.

Interesting technology, but the article doesn't consider two much more important points. 1) Rather than finding a way to warn future civilizations of hazardous nuclear sites, we need to avoid creating them in the first place, and 2) At the rate we're destroying our world, our species will not survive for thousands, let alone millions of years.

I wonder if ancient builders of tombs and temples went through the same process, "must warn future generations of this awful curse!"
And I wonder if there is movie like entertainment in the future they will have magical sapphire disk etched with platinum as plot device.
!

Seems like cave drawings are the way to go...

If you subject nuclear waste to neutron bombardment you can make it go away on a human time frame.

too bad we didn't have cheap access to space like a space elevator or startram, or some type of to orbit capabilities than chemical rockets, then we could just launch it (and all other non recycleable trash into the sun.

It would be silly not to consider the possibility that humans could fail to clean the mess that's already been made. Think about the big picture. If the Bible had been compiled on a similar, indelible medium, we may not have so many splits and cracks between Christians, Jews, and Muslims (since all of their holy books refer to similar ancient events).

There's already a solution. Google liquid fluoride thorium reactor nuclear waste recycle.
Or watch this: http://www.youtube.com/watch?v=P9M__yYbsZ4&feature=player_embedded

Two possibilities : 1/ Future population is able to accurately read and understand this disc. Such a population is also probably able to detect radioactive material, and therefore doesn't need the disc. 2/ Future population is unable to accurately read and understand this disc. Such a population notices that people get sick and animals stay away from a particular area, and therefore stay away regardless of our warnings.
Either way, isn't this a completely pointless exercise as far as the intentions go?

SpaceBagels, I just spent the full two hours watching your vid. I could not turn it off. It reminds me of the idea behind "Atlas Shrugged" of nearly free power. Why in the hell, are we not using this right now? Let alone giving the research to the Chinese? This makes no sense.