I suppose if they started to drill within the Mariana trench http://en.wikipedia.org/wiki/Mariana_Trench/, they'd be starting out 11km below sea level *already*. Perhaps, at that level, one could drill horizontally to reach the mantle.
But... the sea pressure! ("At the bottom of the Mariana Trench, water exerts a pressure of 1086 bar (108.6 MPa or 15,751 psi)" (wikipedia))
CDs (and DVDs, for that matter) do not last forever, even if used. Optical media is subject to a decay called "CD Rot", which essentially means that it has a shelf life of ~10 years.
Better start backing up your 1991 CDs.
DVD Rot Info:
http://www.mv.com/ipusers/richbreton/m/files/cd_ro t.htm
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I suppose if they started to drill within the Mariana trench http://en.wikipedia.org/wiki/Mariana_Trench/, they'd be starting out 11km below sea level *already*. Perhaps, at that level, one could drill horizontally to reach the mantle. But... the sea pressure! ("At the bottom of the Mariana Trench, water exerts a pressure of 1086 bar (108.6 MPa or 15,751 psi)" (wikipedia))
CDs (and DVDs, for that matter) do not last forever, even if used. Optical media is subject to a decay called "CD Rot", which essentially means that it has a shelf life of ~10 years.o t.htm
Better start backing up your 1991 CDs.
DVD Rot Info: http://www.mv.com/ipusers/richbreton/m/files/cd_r