email was Mac something something

From: John Foust <jfoust_at_threedee.com>
Date: Thu Jan 13 18:55:42 2005

At 04:19 PM 1/13/2005, Tom Jennings wrote:
>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.

Yes, reflectance rather than mechano-optical hole-or-not
would be much faster. Like a CD, but flexible, on a spool.
Much great surface area than a 34 mm radius band on a 120 mm disc.

- John
Received on Thu Jan 13 2005 - 18:55:42 GMT