diff --git a/Src/Lib/FFmpeg/util/helper.py b/Src/Lib/FFmpeg/util/helper.py
index e463198..4ce5971 100644
--- a/Src/Lib/FFmpeg/util/helper.py
+++ b/Src/Lib/FFmpeg/util/helper.py
@@ -230,7 +230,7 @@ def add_subtitle(input_video_path: str, input_subtitle_path: str, output_video_p
     return output_video_path
 
 
-def concatenate_and_save(file_list_path: str, output_filename: str, v_codec: str = None, a_codec: str = None, bandwidth: int = None, prefix: str = "segments", output_directory: str = None) -> str:
+def concatenate_and_save(file_list_path: str, output_filename: str, v_codec: str = None, a_codec: str = None, bandwidth: int = None, prefix: str = "segments", output_directory: str = None):
     """
     Concatenate input files and save the output with specified decoding parameters.
 
@@ -249,70 +249,36 @@ def concatenate_and_save(file_list_path: str, output_filename: str, v_codec: str
     """
 
     try:
-        # Input and output arguments
-        input_args = {
-            'format': 'concat', 
-            'safe': 0
-        }
 
+        # Output arguments
         output_args = {
-            #'preset': 'ultrafast',
             'c': 'copy',
             'loglevel': DEBUG_FFMPEG,
-            'y': None,
         }
 
-        # Add BANDWIDTH and CODECS if provided
-        if bandwidth is not None:
-            output_args['b:v'] = str(bandwidth)
-        if USE_CODECS:
-            if v_codec is not None:
-                output_args['vcodec'] = v_codec
-            if a_codec is not None:
-                output_args['acodec'] = a_codec
-
         # Set up the output file name by modifying the video file name
-        output_file_name = os.path.splitext(output_filename)[0] + f"_{prefix}.mp4"
+        output_file_name = output_filename
+        output_file_path = os.path.join(output_directory, output_file_name) if output_directory else output_file_name
 
-        # Determine output directory
-        if output_directory:
-            output_file_path = os.path.join(output_directory, output_file_name)
-        else:
-            output_file_path = output_file_name
-
-        # Concatenate input files and output
+        # Concatenate input file list and output
         output = (
-            ffmpeg.input(
-                file_list_path, 
-                **input_args
-            )
-            .output(
-                output_file_path, 
-                **output_args
-            )
+            ffmpeg.input(file_list_path, safe=0, f='concat')
+            .output(output_file_path, **output_args)
         )
 
         # Overwrite output file if exists
         output = ffmpeg.overwrite_output(output)
 
-        # Retrieve the command that will be executed
-        command = output.compile()
-        logging.info(f"Execute command: {command}")
-
         # Execute the process
         process = output.run()
 
     except ffmpeg.Error as ffmpeg_error:
-
-        logging.error(f"Error saving MP4: {ffmpeg_error.stdout}")
+        logging.error(f"Error saving MP4: {ffmpeg_error.stderr.decode('utf-8')}")
         return ""
 
     # Remove the temporary file list and folder and completely remove tmp folder
-    logging.info("Cleanup...")
     os.remove(file_list_path)
     shutil.rmtree("tmp", ignore_errors=True)
-
-    # Return
     return output_file_path
 
 
diff --git a/Src/Upload/update.py b/Src/Upload/update.py
index 5725047..9d9b4ae 100644
--- a/Src/Upload/update.py
+++ b/Src/Upload/update.py
@@ -25,18 +25,18 @@ def update():
 
     # Make the GitHub API requests and handle potential errors
     try:
-        repo_info = requests.get(f"https://api.github.com/repos/{repo_user}/{repo_name}").json()
-        release_info = requests.get(f"https://api.github.com/repos/{repo_user}/{repo_name}/releases").json()[0]
+        response_reposity = requests.get(f"https://api.github.com/repos/{repo_user}/{repo_name}").json()
+        response_releases = requests.get(f"https://api.github.com/repos/{repo_user}/{repo_name}/releases").json()
     except requests.RequestException as e:
         console.print(f"[red]Error accessing GitHub API: {e}")
         return
 
     # Get start of the reposity
-    stargazers_count = repo_info['stargazers_count']
+    stargazers_count = response_reposity['stargazers_count']
 
     # Find info about latest versione deploy and the donwload count 
-    last_version = release_info['name']
-    down_count = release_info['assets'][0]['download_count']
+    last_version = response_releases[0]['name']
+    down_count = response_releases[0]['assets'][0]['download_count']
 
     # Calculate percentual of start base on download count
     if down_count > 0 and stargazers_count > 0:
diff --git a/config.json b/config.json
index 9dd37aa..c5e2700 100644
--- a/config.json
+++ b/config.json
@@ -54,4 +54,4 @@
             }
         }
     }
-}
+}
\ No newline at end of file