diff --git a/main.py b/main.py
index 5a8e1e5..3608421 100644
--- a/main.py
+++ b/main.py
@@ -51,8 +51,8 @@ class MediaGrader:
 
         # Multi-segment mode state
         self.multi_segment_mode = False
-        self.segment_count = 4  # Number of video segments (2x2 grid)
-        self.segment_overlap_percent = 10  # Percentage overlap between segments
+        self.segment_count = self.SEGMENT_COUNT  # Use the class constant
+        self.segment_overlap_percent = self.SEGMENT_OVERLAP_PERCENT  # Use the class constant
         self.segment_caps = []  # List of VideoCapture objects for each segment
         self.segment_frames = []  # List of current frames for each segment
         self.segment_positions = []  # List of frame positions for each segment
@@ -119,7 +119,7 @@ class MediaGrader:
     
     # Multi-segment mode configuration
     MULTI_SEGMENT_MODE = False
-    SEGMENT_COUNT = 4  # Number of video segments (2x2 grid)
+    SEGMENT_COUNT = 16  # Number of video segments (2x2 grid)
     SEGMENT_OVERLAP_PERCENT = 10  # Percentage overlap between segments
     
     # Seek modifiers for A/D keys