--- On Tue, 9/30/08, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
  Not the same thing, but I beleive that Elektor
magazine
 sold vinyl
 records of programs for their computer projects (the TV
 games computer,
 Junior computer, SC/MP system, etc). These were programs
 only, no
 human-type music on the same disk.
 Of course you just played the record into the cassete
 interface port of
 the computer project... 
There was at least one issue of Rainbow, the Tandy Color Computer magazine, that included
a flexible sound sheet - a square, thin plastic record much like the freebies found in
National Geographic. Of course, this one was recorded with computer programs only. The
instructions were to play the 'record' on a hi-fi system, and record the output
onto a cassette (equalization flat), then to play the cassette into the computer. I forget
what their rationale was for not connecting the computer to the hi-fi directly, but there
was a warning that you could damage the computer. (Probably, they were afraid of people
hooking the _speaker_ outputs into the poor little computer, instead of the line out)
-Ian