diff --git a/src/data/sys-file-reader.c b/src/data/sys-file-reader.c
index af09189..9bda18e 100644
--- a/src/data/sys-file-reader.c
+++ b/src/data/sys-file-reader.c
@@ -1,3 +1,4 @@
+
 /* PSPP - a program for statistical analysis.
    Copyright (C) 1997-9, 2000, 2006, 2007, 2009 Free Software Foundation, Inc.
 
@@ -744,7 +745,11 @@ read_extension_record (struct sfm_reader *r, struct dictionary *dict,
       break;
 
     case 7:
-      /* Unknown purpose. */
+      /* Used by the MRSETS command. */
+      break;
+
+    case 8:
+      /* Used by the SPSS Data Entry software. */
       break;
 
     case 11:
@@ -784,7 +789,7 @@ read_extension_record (struct sfm_reader *r, struct dictionary *dict,
       break;
 
     default:
-      sys_warn (r, _("Unrecognized record type 7, subtype %d."), subtype);
+      sys_warn (r, _("Unrecognized record type 7, subtype %d.  Please send a copy of this file, and the syntax which created it to address@hidden"), subtype);
       break;
     }