CREATE TABLE table_50737 ("Region" TEXT, "Date" TEXT, "Label" TEXT, "Format" TEXT, "Catalog" TEXT)

What catalog had an Epic Records label in CD format?
SELECT "Catalog" FROM table_50737 WHERE "Label" = 'epic records' AND "Format" = 'cd'
SELECT "Catalog" FROM "table_50737" WHERE "Format" = 'cd' AND "Label" = 'epic records'