diff -ur gst-plugins-good-1.0.5/gst/isomp4/qtdemux.c gst-plugins-good-1.0.5-new/gst/isomp4/qtdemux.c
--- gst-plugins-good-1.0.5/gst/isomp4/qtdemux.c	2012-12-31 09:13:00.000000000 -0200
+++ gst-plugins-good-1.0.5-new/gst/isomp4/qtdemux.c	2013-03-21 20:55:38.109093297 -0300
@@ -8686,6 +8686,8 @@
 
   gst_tag_list_add (demux->tag_list, GST_TAG_MERGE_APPEND,
       GST_QT_DEMUX_PRIVATE_TAG, sample, NULL);
+
+  gst_sample_unref(sample);
 }
 
 static void
