There is no indication that CD's will last 50 years banging around in
a flight bag, being tossed into the baggage compartment, thrown on a
shelf in the hangar where they go from 20 below to 120 degrees over
and over through the years...... I have printed manuals on Fat Albert
that are that old and have ... THey still boot up just fine...
Also, I cannot balance a CD on my tummy in bed and read it.. I vote
for the manufacturers to be required to supply a printed manual on
dead trees...

denny