diff --git a/cdrskin/cdrskin_timestamp.h b/cdrskin/cdrskin_timestamp.h
index 0016a4f..1f1708e 100644
--- a/cdrskin/cdrskin_timestamp.h
+++ b/cdrskin/cdrskin_timestamp.h
@@ -1 +1 @@
-#define Cdrskin_timestamP "2013.04.01.121637"
+#define Cdrskin_timestamP "2013.04.01.121851"
diff --git a/libburn/libdax_msgs.h b/libburn/libdax_msgs.h
index 25888ad..3de8b47 100644
--- a/libburn/libdax_msgs.h
+++ b/libburn/libdax_msgs.h
@@ -597,6 +597,7 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x0002019b (SORRY,HIGH)   = CD track number exceeds range of 1 to 99
  0x0002019c (SORRY,HIGH)   = Session has no defined tracks
  0x0002019d (SORRY,HIGH)   = Audio read size not properly aligned
+ 0x0002019e (NOTE,HIGH)    = Drive does not support media certification
 
 
  libdax_audioxtr:
diff --git a/libburn/mmc.c b/libburn/mmc.c
index 8a371ba..e002c8c 100644
--- a/libburn/mmc.c
+++ b/libburn/mmc.c
@@ -3957,10 +3957,22 @@ no_suitable_formatting_type:;
 			goto no_suitable_formatting_type;
 		format_type = d->format_descriptors[index].type;
 		if (format_type == 0x30 || format_type == 0x31) {
-			if (flag & 64)
-				format_sub_type = 3; /* Quick certification */
-			else
-				format_sub_type = 2; /* Full certification */
+			if ((flag & 64) || !(d->current_feat23h_byte4 & 3)) {
+				format_sub_type = 0;
+				if (!(flag & 64))
+					libdax_msgs_submit(libdax_messenger,
+					    d->global_index, 0x0002019e,
+					    LIBDAX_MSGS_SEV_NOTE,
+					    LIBDAX_MSGS_PRIO_HIGH,
+				"Drive does not support media certification",
+					    0, 0);
+			} else {
+				/* With Certification */
+				if (d->current_feat23h_byte4 & 1)
+					format_sub_type = 2; /* Full */
+				else
+					format_sub_type = 3; /* Quick */
+			}
 		}
 
 #ifdef Libburn_bd_re_format_olD
@@ -4057,6 +4069,11 @@ unsuitable_media:;
 	}
 #endif /* Libburn_do_not_format_dvd_ram_or_bd_rE */
 
+/* <<<
+fprintf(stderr, "\nlibburn_DEBUG: FORMAT UNIT temporarily disabled.\n");
+ret = 1; goto ex;
+ */
+
 	d->issue_command(d, c);
 	if (c->error && !tolerate_failure) {
 		spc_decode_sense(c->sense, 0, &key, &asc, &ascq);