+ // replace missing special artwork 1 or 2 with (optional) standard artwork
+
+ if (!*artwork_set_1)
+ setString(artwork_set_1, *artwork_set);
+
+ if (!*artwork_set_2)
+ setString(artwork_set_2, *artwork_set);
+
+ // set standard artwork to either special artwork 1 or 2, as requested
+