diff --git a/denonavr/const.py b/denonavr/const.py
index 6e5c4dc..293c639 100644
--- a/denonavr/const.py
+++ b/denonavr/const.py
@@ -247,7 +247,9 @@
         "DOLBY AUDIO - DOLBY TRUEHD",
         "DOLBY AUDIO - TRUEHD + DSUR",
         "DOLBY AUDIO - TRUEHD + NEURAL:X",
+        "DOLBY AUDIO-DD",
         "DOLBY AUDIO-DD+ +DSUR",
+        "DOLBY AUDIO-DD+ +NEURAL:X",
         "DOLBY AUDIO-DD+",
         "DOLBY AUDIO-DD+DSUR",
         "DOLBY AUDIO-DSUR",