diff --git a/croppa/main.py b/croppa/main.py
index a091d0f..c9df22f 100644
--- a/croppa/main.py
+++ b/croppa/main.py
@@ -13,6 +13,7 @@ import subprocess
 import queue
 import ctypes
 from collections import OrderedDict
+from datetime import datetime
 from PIL import Image
 
 def load_image_utf8(image_path):
@@ -960,6 +961,12 @@ class VideoEditor:
                 json.dump(state, f, indent=2)
             print(f"State saved to {state_file}")
             
+            # Also save dated copy
+            iso_date = datetime.now().isoformat().replace(':', '-').split('.')[0]
+            dated_state_file = self.video_path.parent / f"{self.video_path.stem}-{iso_date}.json"
+            with open(dated_state_file, 'w') as f:
+                json.dump(state, f, indent=2)
+            
             # Refresh project view progress data if project view is active
             if self.project_view_mode and self.project_view:
                 self.project_view.refresh_progress_data()