diff --git a/ptulsconv/commands.py b/ptulsconv/commands.py
index 3b2f4de..9eb0dcf 100644
--- a/ptulsconv/commands.py
+++ b/ptulsconv/commands.py
@@ -152,7 +152,8 @@ def convert(input_file, output_format='fmpxml', output=sys.stdout, warnings=True
 
             if warnings:
                 for warning in chain(validate_unique_field(lines,
-                                                           field='cue_number'),
+                                                           field='cue_number',
+                                                           scope='title'),
                                      validate_non_empty_field(lines,
                                                               field='cue_number'),
                                      validate_non_empty_field(lines,
@@ -175,15 +176,3 @@ def convert(input_file, output_format='fmpxml', output=sys.stdout, warnings=True
                 create_adr_reports(lines, tc_display_format=session_tc_format,
                                    reel_list=sorted(reels))
 
-    # elif output_format == 'csv':
-    #     dump_csv(parsed['events'])
-    #
-
-    # elif output_format == 'fmpxml':
-    #     if xsl is None:
-    #         dump_fmpxml(parsed, input_file, output, adr_field_map)
-    #     else:
-    #         print_section_header_style("Performing XSL Translation")
-    #         print_status_style("Using builtin translation: %s" % xsl)
-    #         fmp_transformed_dump(parsed, input_file, xsl, output)
-
diff --git a/ptulsconv/validations.py b/ptulsconv/validations.py
index 72e6fbe..7579369 100644
--- a/ptulsconv/validations.py
+++ b/ptulsconv/validations.py
@@ -29,14 +29,20 @@ def validate_value(input_lines: Iterator[ADRLine], key_field, predicate):
                                   event=event)
 
 
-def validate_unique_field(input_lines: Iterator[ADRLine], field='cue_number'):
-    values = set()
+def validate_unique_field(input_lines: Iterator[ADRLine], field='cue_number', scope=None):
+    values = dict()
     for event in input_lines:
         this = getattr(event, field)
-        if this in values:
+        if scope is not None:
+            key = getattr(event, scope)
+        else:
+            key = '_values'
+
+        values.setdefault(key, set())
+        if this in values[key]:
             yield ValidationError(message='Re-used {}'.format(field), event=event)
         else:
-            values.update(this)
+            values[key].update(this)
 
 
 def validate_non_empty_field(input_lines: Iterator[ADRLine], field='cue_number'):