The plural of record is records.
They happen to be pressed on vinyls.
fixed
Vynil is a group of compounds with varying formulas / ingredients
If all these vynilses were from the same print at the same record duplication plant then it is possible you could refer to them as vynil, but seeing they are from multiple plants and multiple times its more likely that there is a difference in the formations of the various vynils they've been printing them on.