Most other companies recorded two, three, or more
takes but they usually select one take as the primary approved take.
Alternates get ISSUED by those other companies when something happens to
the master of the primary approved take, there is a mistake in the
factory, a leasing agreement with another company might provide them
with alternates, the thing is such a big hit they need more stampers
right now and using an alternate will speed up the process, or years
later when a new edition or a reissue is being done the guy in the
warehouse sends the producer the better-looking less-worn master. (When
I congratulated Vince Giordano for finding and issuing Paul Whiteman's
"Charleston" without the Chinese scat vocal on the Buddha "Time Capsule"
CD, he admitted that, yes, the vault sent him the best looking master!)