diff --git a/.gitignore b/.gitignore
index 29ad255..61db21f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,7 @@ outputs/
 .DS_Store
 .idea/
 .vscode/
+
+# Full-size source video — keep locally, commit only compressed derivatives
+media-files/video/*.mp4
+!media-files/video/*-480p.mp4
diff --git a/media-files/audio/service-mbrs-ntscrm-01840194-01840194.m4a b/media-files/audio/service-mbrs-ntscrm-01840194-01840194.m4a
new file mode 100644
index 0000000..9a9772f
Binary files /dev/null and b/media-files/audio/service-mbrs-ntscrm-01840194-01840194.m4a differ
diff --git a/media-files/video/service-mbrs-ntscrm-01840194-01840194-480p.mp4 b/media-files/video/service-mbrs-ntscrm-01840194-01840194-480p.mp4
new file mode 100644
index 0000000..3b36a4e
Binary files /dev/null and b/media-files/video/service-mbrs-ntscrm-01840194-01840194-480p.mp4 differ