diff --git a/src/ffx/audio_layout.py b/src/ffx/audio_layout.py
index 27cc1a8..99e8ab8 100644
--- a/src/ffx/audio_layout.py
+++ b/src/ffx/audio_layout.py
@@ -9,6 +9,7 @@ class AudioLayout(Enum):
     LAYOUT_7_1      = {"label": "7.1", "index": 4} #TODO: Does this exist?
 
     LAYOUT_6CH      = {"label": "6ch", "index": 5}
+    LAYOUT_5_0      = {"label": "5.0(side)", "index": 6}
 
     LAYOUT_UNDEFINED  = {"label": "undefined", "index": 0}
 
diff --git a/src/ffx/ffx_controller.py b/src/ffx/ffx_controller.py
index bf20f7f..4dcf558 100644
--- a/src/ffx/ffx_controller.py
+++ b/src/ffx/ffx_controller.py
@@ -149,6 +149,16 @@ class FfxController():
                                 f"channelmap={FfxController.CHANNEL_MAP_5_1}",
                                 f"-b:a:{trackSubIndex}",
                                 self.__context['bitrates']['ac3']]
+
+            # -ac 5 ?
+            if trackAudioLayout == AudioLayout.LAYOUT_5_0:
+                audioTokens += [f"-c:a:{trackSubIndex}",
+                                'libopus',
+                                f"-filter:a:{trackSubIndex}",
+                                'channelmap=channel_layout=5.0',
+                                f"-b:a:{trackSubIndex}",
+                                self.__context['bitrates']['ac3']]
+
             trackSubIndex += 1
         return audioTokens