1. Sony Betamax video Japanese electronics giant Sony fought hard to convince us that its Betamax video system was better than the rival VHS back in the late 1970s and into the 1980s. But the cheaper VHS system won the day – although you might be surprised to know that Betamax continued in production until the end of 2002. (Original image by Bettenburg at de.wikipedia (Own work) [Public domain], via Wikimedia Commons) 2. LaserDiscs Also known as DiscoVision in the…