diff --git a/script-opts/subs2srs.conf b/script-opts/subs2srs.conf
index f1a4a9c..196b843 100644
--- a/script-opts/subs2srs.conf
+++ b/script-opts/subs2srs.conf
@@ -202,7 +202,7 @@ animated_snapshot_width=-2
 animated_snapshot_height=400
 
 # Quality of the produced animation, 0 = lowest, 100 = highest
-animated_snapshot_quality=88
+animated_snapshot_quality=69
 
 ##
 ## Audio settings
@@ -224,8 +224,8 @@ audio_format=opus
 #    though you may try to add an exception for AnkiMobile.)
 # opus_container=ogg
 #opus_container=opus
-#opus_container=m4a
-opus_container=webm
+opus_container=m4a
+# opus_container=webm
 #opus_container=caf
 
 # Sane values are 16k-32k for opus, 64k-128k for mp3.