LaserDisc existed during the Betamax/VHS era. It was dropped due to not having the ability to record.

LaserDisc's second coming was after the era of BetaHiFi and VHS HiFi, when the people demanded better clarity and HiFi sound (Dolby ProLogic... subsequently Dolby Digital)

LaserDisc is very sustainable to Laser Rot (oxidization of the disc surface)