Jane...I suggest you  e-mail DG's American office in New York at:
        http://www.dgclassics.com

or go to a record store and ask a helpful clerk.  You may wish not to
limit your search to DG only.  There are many excellent selections in a
well stocked record store and published by other record companies.  (Silly
though this my appear, my sense is that major record companies (DG is
typical) are not set up to handle direct record buyer inquires.) Good luck.

Bernard Gregoire
Hingham, MA