diff --git a/plugins/DupFileManager/DupFileManager.py b/plugins/DupFileManager/DupFileManager.py
index dd20a30..95a8be0 100644
--- a/plugins/DupFileManager/DupFileManager.py
+++ b/plugins/DupFileManager/DupFileManager.py
@@ -503,11 +503,18 @@ def isBetterVideo(scene1, scene2, swapCandidateCk = False): # is scene2 better t
             return True
     return False
 
+def isSignificantTimeDiff(duration1, duration2):
+    dur1 = int(duration1)
+    dur2 = int(duration2)
+    return abs(dur1 - dur2) / max(abs(dur1), abs(dur2)) > (1 - significantTimeDiff)
+
 def significantMoreTimeCompareToBetterVideo(scene1, scene2): # is scene2 better than scene1
     if isinstance(scene1, int):
         scene1 = stash.find_scene(scene1)
         scene2 = stash.find_scene(scene2)
-    if int(scene1['files'][0]['duration']) >= int(scene2['files'][0]['duration']):
+    dur1 = int(scene1['files'][0]['duration'])
+    dur2 = int(scene2['files'][0]['duration'])
+    if dur1 >= dur2 or not isSignificantTimeDiff(dur1, dur2):
         return False
     if int(scene1['files'][0]['width']) * int(scene1['files'][0]['height']) > int(scene2['files'][0]['width']) * int(scene2['files'][0]['height']):
         if significantTimeDiffCheck(scene1, scene2):
@@ -520,7 +527,7 @@ def significantMoreTimeCompareToBetterVideo(scene1, scene2): # is scene2 better
     return True
 
 def allThingsEqual(scene1, scene2): # If all important things are equal, return true
-    if int(scene1['files'][0]['duration']) != int(scene2['files'][0]['duration']):
+    if isSignificantTimeDiff(scene1['files'][0]['duration'], scene2['files'][0]['duration']):
         return False
     if scene1['files'][0]['width'] != scene2['files'][0]['width']:
         return False