diff --git a/70 MD5.py b/70 MD5.py
index 8ef237a..7fc57e8 100644
--- a/70 MD5.py	
+++ b/70 MD5.py	
@@ -5,6 +5,7 @@
 FAST MD5 indexer with in-memory cache
 - prints every processed file
 - skips unchanged files instantly
+- restart-safe (no reprocessing same files)
 """
 
 import os
@@ -60,7 +61,7 @@ def main():
     print("📥 Loading already indexed files into memory...")
 
     cur.execute("""
-        SELECT full_path, file_size, mtime
+        SELECT full_path, file_size, UNIX_TIMESTAMP(mtime)
         FROM file_md5_index
     """)
 
@@ -84,11 +85,10 @@ def main():
             except (OSError, FileNotFoundError):
                 continue
 
-            key = (
-                full_path,
-                stat.st_size,
-                datetime.fromtimestamp(stat.st_mtime),
-            )
+            mtime = int(stat.st_mtime)
+            size = stat.st_size
+
+            key = (full_path, size, mtime)
 
             # FAST PATH
             if key in indexed:
@@ -99,7 +99,7 @@ def main():
                 continue
 
             print("➕ NEW / UPDATED")
-            print(f"   Size: {format_size(stat.st_size)}")
+            print(f"   Size: {format_size(size)}")
             print(f"   File: {full_path}")
 
             try:
@@ -111,7 +111,7 @@ def main():
             cur.execute("""
                 INSERT INTO file_md5_index
                     (full_path, file_name, directory, file_size, mtime, md5)
-                VALUES (%s, %s, %s, %s, %s, %s)
+                VALUES (%s, %s, %s, %s, FROM_UNIXTIME(%s), %s)
                 ON DUPLICATE KEY UPDATE
                     file_size=VALUES(file_size),
                     mtime=VALUES(mtime),
@@ -121,8 +121,8 @@ def main():
                 full_path,
                 fname,
                 root,
-                stat.st_size,
-                datetime.fromtimestamp(stat.st_mtime),
+                size,
+                mtime,
                 md5,
             ))