diff --git a/examples/src/media/sendonly.py b/examples/src/media/sendonly.py
index d6b593a7..9d63f752 100644
--- a/examples/src/media/sendonly.py
+++ b/examples/src/media/sendonly.py
@@ -59,6 +59,7 @@ def __init__(
         self._connection.on_disconnect = self._on_disconnect
 
         if platform.system() == "Windows":
+            # CAP_DSHOW を設定しないと、カメラの起動がめちゃめちゃ遅くなる
             self._video_capture = cv2.VideoCapture(camera_id, cv2.CAP_DSHOW)
         else:
             self._video_capture = cv2.VideoCapture(camera_id)
diff --git a/examples/src/ml/hideface_sender.py b/examples/src/ml/hideface_sender.py
index 149ad63d..dea43b7c 100644
--- a/examples/src/ml/hideface_sender.py
+++ b/examples/src/ml/hideface_sender.py
@@ -52,6 +52,7 @@ def __init__(
         self._connection.on_disconnect = self._on_disconnect
 
         if platform.system() == "Windows":
+            # CAP_DSHOW を設定しないと、カメラの起動がめちゃめちゃ遅くなる
             self._video_capture = cv2.VideoCapture(camera_id, cv2.CAP_DSHOW)
         else:
             self._video_capture = cv2.VideoCapture(camera_id)