diff --git a/configure.ac b/configure.ac
index a401b4bb1..191c7fd7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -632,7 +632,7 @@ AC_ARG_ENABLE(zrtp,
 
 dnl this options are just for passing to mediastreamer2 subproject
 AC_ARG_ENABLE(dtls,
-	[AS_HELP_STRING([--enable-dtls], [Turn on dtls support - requires polarssl > 1.4])],
+	[AS_HELP_STRING([--enable-dtls], [Turn on srtp-dtls support - requires polarssl > 1.4])],
 	[case "${enableval}" in
 		yes)	dtls=true ;;
 		no)	dtls=false ;;
diff --git a/mediastreamer2 b/mediastreamer2
index 1b317efd3..1875fc392 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 1b317efd307bda09b3b63ac6f0ef5cbfe7c0a5c7
+Subproject commit 1875fc39279d7631c843ac134d81a4121e8fa0a7
diff --git a/oRTP b/oRTP
index 2c4e6fad9..84c4bf787 160000
--- a/oRTP
+++ b/oRTP
@@ -1 +1 @@
-Subproject commit 2c4e6fad977d139676e8477ae195f87a98272155
+Subproject commit 84c4bf787f6f2a0a6e4c5c7e5fd9a7de49dfb02f
diff --git a/tester/stereo-record.wav b/tester/stereo-record.wav
deleted file mode 100644
index f037e21f2..000000000
Binary files a/tester/stereo-record.wav and /dev/null differ