How the betamax works, why it isnot a looser

00:00 intro
01:16 The format infos
03:00 Betamovie
03:40 Hi-Fi
05:08 SL-C40
06:45 Superbeta
07:37 EDbeta
07:58 The end of prod
08:40 Sample footages
10:21 Its future