Most who are familiar with Sony's MiniDisc know it as a portable music playback format. But the MDCC-2000 had a much more unique purpose. MDCC-2000 operating instructions (PDF): https://www.sony.com/electronics/support/res/manuals/W000/W0006658M.pdf Sources: Stenography photo: https://www.flickr.com/photos/mgifford/15792067707 ---------------------------------------­------------------------------------ Please consider supporting my work on Patreon: https://www.patreon.com/thisdoesnotcompute Follow me on Twitter and Instagram! @thisdoesnotcomp ---------------------------------------­------------------------------------ Music by Epidemic Sound (https://www.epidemicsound.com/). Intro music by BoxCat Games (https://freemusicarchive.org/music/BoxCat_Games).