CREATE TABLE table_44598 ("Region" CLOB, "Date" CLOB, "Label" CLOB, "Catalog" CLOB, "Format" CLOB)

What was the catalog when the label was frontiers records?
SELECT "Catalog" FROM table_44598 WHERE "Label" = 'frontiers records'
SELECT "Catalog" FROM "table_44598" WHERE "Label" = 'frontiers records'