diff --git a/xorriso/iso_img.c b/xorriso/iso_img.c
index 7e8a5fc4..bd2b74fb 100644
--- a/xorriso/iso_img.c
+++ b/xorriso/iso_img.c
@@ -2140,9 +2140,17 @@ static int Xorriso_scan_report_lines(struct XorrisO *xorriso,
 
      if(high_block < num[1] && num[2] > 0 && !gpts[idx].is_gap) {
        for(mbr_idx = 0; mbr_idx < mbr_count; mbr_idx++) {
-         if(mbrpts[mbr_idx].start_block == num[1] &&
-            mbrpts[mbr_idx].block_count == num[2])
+         if(mbrpts[mbr_idx].start_block == num[1]) {
+           if(mbrpts[mbr_idx].block_count != num[2] && !(flag & 1)) {
+             sprintf(xorriso->info_text,
+                     "GPT partition %d has same start block as MBR partition %d but different block count (%.f <> %.f)",
+                     idx + 1, mbr_idx + 1, num[2],
+                     (double) mbrpts[mbr_idx].block_count);
+             Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING",
+                                 0);
+           }
        break;
+         }
        }
        if(mbr_idx >= mbr_count) {
          if(appended_as_gpt == 1) {
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 43b5cd9b..b019aebf 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2017.04.09.175231"
+#define Xorriso_timestamP "2017.04.09.175347"