Not relevant to the overall discussion, but this VHS vs Betamax thing is actually a myth, borne from confusing Betamax (a home consumer version, comparable and

Not relevant to the overall discussion, but this VHS vs Betamax thing is actually a myth, borne from confusing Betamax (a home consumer version, comparable and inferior to VHS) with Betacam (a professional format, which could use the same physical tapes as Betamax, albeit at much shorter runtimes so not suitable for movies).