To clarify what John Adams wrote, the VWML has a large collection of commercial recordings of folk music and that gets added to weekly by donation (usually) from artists and record companies.
I think what John will have "helped himself" to will be donations of LPs and perhaps CDs that are duplicates to the existing collection. Often these duplicates are sold or doinations are requested, which of course gives the VWML more funds with which to add to the collections - books, CDs, DVDs etc,.
Derek Schofield