13 Jan
2005
13 Jan
'05
8:32 a.m.
Tom Jennings wrote:
Oh, now this thread I like!
Paper and mylar longevity is very good. Good old fiche has a
projected 500 year life. Paper can last a long time but machine
handling criteria is different than for books.
A thin mylar strip, say standard 1" wide, with an optical reader
you wouldn't need to make holes, only dark spots.
Use a laser whose output the tape isn't transparent to; a "1" is a
heat-distorted/discolored spot. A smaller spot for the "sprocket"
hole/index.
And make it a little thicker, let it rotate a little,
and you got a CD ;-)