http://www.kempa.com/blog/archives/000053.html

One strategy that major record companies have been employing lately to deter downloading is adding bonus computer content to new CD releases. I recently discovered that this technique is not unique to CD's, but had in fact been practiced in the vinyl era as well. That's right: there were a handful of records released in the late 70's and early 80's that contained computer programs as part of the audio.

http://apple.co.jp/quicktime/trailers/toho/steamboy_large.html

Quality anime and with that name, the plot must be fantastic!