diff --git a/modules/demux/asf/libasf.c b/modules/demux/asf/libasf.c
index 08e56a7146..76313f257b 100644
--- a/modules/demux/asf/libasf.c
+++ b/modules/demux/asf/libasf.c
@@ -1550,6 +1550,9 @@ static const struct
     { &asf_object_content_encryption_guid, "Content Encryption"},
     { &asf_object_advanced_content_encryption_guid, "Advanced Content Encryption"},
     { &asf_object_extended_content_encryption_guid, "Entended Content Encryption"},
+    /* Non Readable from this point */
+    { &nonasf_object_index_placeholder_guid, "Index Placeholder"},
+    { &nonasf_object_compatibility, "Object Compatibility"},
 
     { NULL, "Unknown" },
 };
diff --git a/modules/demux/asf/libasf_guid.h b/modules/demux/asf/libasf_guid.h
index ef6ca0e931..8e9d279487 100644
--- a/modules/demux/asf/libasf_guid.h
+++ b/modules/demux/asf/libasf_guid.h
@@ -222,6 +222,14 @@ static const guid_t asf_guid_mutex_bitrate =
 static const guid_t asf_guid_mutex_unknown =
 {0xD6E22A02, 0x35DA, 0x11D1, {0x90, 0x34, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xBE}};
 
+// Obscure ones
+// http://cpan.uwinnipeg.ca/htdocs/Audio-WMA/Audio/WMA.pm.html
+
+static const guid_t nonasf_object_index_placeholder_guid =
+{0xD9AADE20, 0x7C17, 0x4F9C, {0xBC, 0x28, 0x85, 0x55, 0xDD, 0x98, 0xE2, 0xA2}};
+
+static const guid_t nonasf_object_compatibility =
+{0x26F18B5D, 0x4584, 0x47EC, {0x9F, 0x5F, 0x0E, 0x65, 0x1F, 0x04, 0x52, 0xC9}};
 
 /****************************************************************************
  * GUID functions