Original sentence: In the 1980s revival, the message arrived on miniature optical discs, played on a disposable miniature video player with a built-in screen, which as usual would self-destruct after being played
Edited sentence: In the 1980s revival, the message arrived on miniature optical discs, played on a disposable miniature video player with a built-in screen and a 12-button number keypad to key in the access code to the disc, which as usual would self-destruct after being played