diff --git a/downscale_all_mp4_in_current_folder_to_1080p.sh b/downscale_all_mp4_in_current_folder_to_1080p.sh
new file mode 100755
index 0000000..5bc8a9d
--- /dev/null
+++ b/downscale_all_mp4_in_current_folder_to_1080p.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+for input_file in *.mp4 ; do
+	basename=$(basename -s .mp4 "$input_file")
+	old_file="${basename}.old.mp4"
+	mv "$input_file" "$old_file"
+	(ffmpeg -i "$old_file" -c:a copy -fps_mode passthrough -vf "scale=-1:'min(1080,ih)'" "$input_file" && rm "$old_file") || \
+	(mv "$input_file" "${input_file}.conv_err" && mv "$old_file" "$input_file")
+done