[citation][nom]homrqt[/nom]can it survive lava?[/citation]
It can, but when the lava cools the only way you can get it back is to use explosives or pneumatic drills. They destroy the data unfortunately. You could of course wait for natural errosion over the next 3000 years to wear away the rock and retrieve your data. But don't worry, your great, great, great, great, great, great, great, great, great, great, great, great, great, great, great, grandkids will be able to see your stupid holiday pics a treat...