diff --git a/openlp/core/ui/media/phononplayer.py b/openlp/core/ui/media/phononplayer.py
index 5203c5960..57d1f7663 100644
--- a/openlp/core/ui/media/phononplayer.py
+++ b/openlp/core/ui/media/phononplayer.py
@@ -51,6 +51,7 @@ ADDITIONAL_EXT = {
             u'video/x-matroska': [u'.mpv', u'.mkv'],
             u'video/x-wmv': [u'.wmv'],
             u'video/x-mpg': [u'.mpg'],
+            u'video/mpeg' : [u'.mp4', u'.mts'],
             u'video/x-ms-wmv': [u'.wmv']}