Well, hello there my friend! I see there is quite a bit of a debate over this particular subject when one punches in "the plural to vinyl is"... And also the Oxford English Dictionary does not support changing the plural to vinyl to "vinyls".. so it depends on which dictionary one uses as a reference. Another point is where many grammar specialists treat the word "vinyl" as a mass noun, just like the words beer, cheese, fish, sheep, and deer, which do not use a plural and as such do not have an "s"... Ah, the debate continues!