diff --git a/MkvOpusEnc.py b/MkvOpusEnc.py
index 01dad50..057a8d1 100644
--- a/MkvOpusEnc.py
+++ b/MkvOpusEnc.py
@@ -15,6 +15,7 @@ import json
 import shutil
 import subprocess
 import sys
+import re # Import the regular expression module
 import tempfile
 from datetime import datetime
 from pathlib import Path
@@ -28,18 +29,15 @@ class Tee:
 
     def write(self, obj):
         # For regular file writes (like logs), replace carriage returns with newlines
-        # to ensure each progress update is on a new line. Also strip ANSI codes.
-        log_obj = re.sub(r'\x1B\[[0-?]*[ -/]*[@-~]', '', obj).replace('\r', '\n')
+        # to ensure each progress update is on a new line.
+        log_obj = obj.replace('\r', '\n')
 
         for f in self.files:
             if f in self.terminals:
-                # For terminals, write the object as-is.
-                # The calling code will handle ANSI escape codes for clearing the line.
-                # The `\r` at the end of the object ensures the cursor returns to the start.
-                # The `\x1B[K` escape code clears from the cursor to the end of the line.
                 if obj.endswith('\r'):
-                    # This is a progress line. Clear the line and write.
-                    f.write(obj.strip() + '\x1B[K\r')
+                    # This is a progress line. Pad with spaces to clear the line, then add carriage return.
+                    terminal_width = shutil.get_terminal_size(fallback=(80, 24)).columns
+                    f.write(obj.strip().ljust(terminal_width) + '\r')
                 else:
                     # This is regular output.
                     f.write(obj)
@@ -117,7 +115,7 @@ def convert_audio_track(stream_index, channels, temp_dir, source_file, should_do
     # Read stderr and print progress updates. The Tee class now handles '\r' correctly.
     stderr_output = ""
     for line in iter(process.stderr.readline, ''):
-        stderr_output += line
+        stderr_output += line.strip() + '\n' # Store clean lines for parsing
         # Write the line, ending with a carriage return to reset the line position.
         # The Tee class will convert this to a newline for the log file.
         sys.stdout.write(line.strip() + '\r')