diff --git a/removeads.py b/removeads.py
index b0b53e7..2d93a22 100755
--- a/removeads.py
+++ b/removeads.py
@@ -53,6 +53,11 @@ class SupportedFormat(IntEnum):
         else:
             return 'Unsupported format'
 
+# Extract SPS/PPS 
+# https://gitlab.com/mbunkus/mkvtoolnix/-/issues/2390
+# ffmpeg -i <InputFile (before concatenation)> -c:v copy -an -sn -bsf:v trace_headers -t 0.01 -report -loglevel 0 -f null -
+
+
 def getFormat(inputFile):
     logger = logging.getLogger(__name__)