diff --git a/README.md b/README.md
index 53fb177..bec215f 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ FAQ
 
 Most ASS renderers render ASS subtitles at the same resolution as the video. This is probably because the video is at low resolution or framerate.
 
+If you use MPlayer, you can add options similar to `-vf fps=30,scale=1920:1080,ass` (change the values as you wish).`
+
 ### I would like to render the danmakus into the video.
 
 Use `ffmpeg`: