Zygon International The Learning Machine Software Disc Lot 5pc 1994 Audio System Vintage 1994 Zygon International software audio lot. These are specialized discs for interactive mind-training hardware setups. Software set requires the Zygon hardware interface for operation. • Condition: 4 NEW / Sealed, 1 Opened • Format: 5 Discs Essential tech collector piece for those hunting retro biofeedback hardware accessories. #vintage #tech #90s #software #rare