diff --git a/FFMpeg-Compressor/modules/utils.py b/FFMpeg-Compressor/modules/utils.py
index a7c82e7..0c4f43b 100644
--- a/FFMpeg-Compressor/modules/utils.py
+++ b/FFMpeg-Compressor/modules/utils.py
@@ -1,19 +1,23 @@
 from modules import printer
+import glob
 import os
 
 
-def get_dir_size(start_path):
+def get_dir_size(directory, files):
     total_size = 0
-    for dirpath, dirnames, filenames in os.walk(start_path):
-        for f in filenames:
-            fp = os.path.join(dirpath, f)
-            if not os.path.islink(fp):
-                total_size += os.path.getsize(fp)
+    for f in files:
+        fp = glob.glob(f'{directory}/{f}*')[0]
+        if not os.path.islink(fp):
+            total_size += os.path.getsize(fp)
     return total_size
 
 
 def get_compression(orig, comp):
-    comp = 100 - int((get_dir_size(comp) / get_dir_size(orig)) * 100)
+    processed_files = []
+    for file in os.listdir(comp):
+        processed_files.append(os.path.splitext(file)[0])
+
+    comp = 100 - int((get_dir_size(comp, processed_files) / get_dir_size(orig, processed_files)) * 100)
     if comp < 0:
         printer.warning(f'Compression: {comp}%')
         printer.warning("The resulting files are larger than the original ones!")