You buy and detonate a 1 kiloton nuke bomb, with the discs under the
then while your cleaning up the nuke waste contamination, pick up
whats left of the discs, encase in concrete and send to a nuke waste
repository, like cheyenne mountain.
somewhere in the next million years the mountain will be breached, the
nuke waste released will kill everyone in the area, then the
yellowstone old faithful volcanoe will erupt blowing whats left of
your discs on a trip to mars......
archeaologists there will unerath them in 2 million years..........
by then no one will have a cd reader.so your data may be secure