diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index b3a45b3fb5..507ef34cf5 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -2341,7 +2341,9 @@ def _parse_smil_formats_and_subtitles(
         imgs_count = 0
 
         srcs = set()
-        media = smil.findall(self._xpath_ns('.//video', namespace)) + smil.findall(self._xpath_ns('.//audio', namespace))
+        media = itertools.chain.from_iterable(
+            smil.findall(self._xpath_ns(arg, namespace))
+            for arg in ['.//video', './/audio', './/media'])
         for medium in media:
             src = medium.get('src')
             if not src or src in srcs: