diff --git a/xorriso/base_obj.c b/xorriso/base_obj.c
index f67429d1..34b2809f 100644
--- a/xorriso/base_obj.c
+++ b/xorriso/base_obj.c
@@ -260,6 +260,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
    m->appended_part_types[i]= 0;
  }
  m->ascii_disc_label[0]= 0;
+ memset(m->hfsp_serial_number, 0, 8);
  m->vol_creation_time= 0;
  m->vol_modification_time= 0;
  m->vol_expiration_time= 0;
diff --git a/xorriso/emulators.c b/xorriso/emulators.c
index c65d5cae..4d79f7af 100644
--- a/xorriso/emulators.c
+++ b/xorriso/emulators.c
@@ -608,7 +608,7 @@ int Xorriso_genisofs_count_args(struct XorrisO *xorriso, int argc, char **argv,
     "--stdio_sync", "--quoted_path_list", "--efi-boot", "--embedded-boot",
     "-isohybrid-mbr", "-e", "-partition_offset", "-partition_hd_cyl",
     "-partition_sec_hd", "-partition_cyl_align", "-untranslated_name_len",
-    "-rr_reloc_dir",
+    "-rr_reloc_dir", "-hfsplus-serial-no",
     ""
  };
  static char arg2_options[][41]= {
@@ -729,14 +729,16 @@ int Xorriso_genisofs_help(struct XorrisO *xorriso, int flag)
 
 /* >>> ts B20523 : To be activated when HFS+ works */
 
+"  -hfsplus                    Generate HFS+ filesystem",
 "  -hide-hfsplus GLOBFILE      Hide HFS+ file",
 "  -hide-hfsplus-list FILE     File with list of HFS+ files to hide",
-"  -hfsplus                    Generate HFS+ filesystem",
 "  -hfsplus-file-creator-type CREATOR TYPE iso_rr_path",
 "                              Attach creator and type to a File",
 "  -hfs-bless FOLDER_NAME      Name of Folder to be blessed",
 "  -hfs-bless-by BLESS_TYPE ISO_RR_PATH",
 "                              Bless ISO_RR_PATH by BLESS_TYPE {p,i,s,9,x}",
+"  -hfsplus-serial-no HEXSTRING",
+"                              HFS serial number: 16 characters [0-9a-fA-F]",
 
 #endif
 
@@ -1088,7 +1090,8 @@ int Xorriso_genisofs(struct XorrisO *xorriso, char *whom,
  int with_boot_image= 0, with_cat_path= 0, with_emul_toc= 0;
  int old_root_md5= 1, old_root_dev= 0, old_root_ino= 1;
  int *weight_list= NULL, weight_count= 0;
- int *delay_opt_list= NULL, delay_opt_count= 0;
+ int *delay_opt_list= NULL, delay_opt_count= 0, bin_count;
+ uint8_t sn[8];
  char *sfe= NULL, *adr= NULL, ra_text[80], *pathspec= NULL;
  char *ept, *add_pt, *eff_path= NULL, *indev= NULL, msc[80], *cpt;
  char *old_root= NULL, *argpt, *hargv[1];
@@ -1526,6 +1529,20 @@ illegal_c:;
      i+= arg_count;
    } else if(strcmp(argpt, "-hfsplus") == 0) {
      xorriso->do_hfsplus= 1;
+   } else if(strcmp(argpt, "-hfsplus-serial-no") == 0) {
+     if(i+1>=argc)
+       goto not_enough_args;
+     i++;
+     ret= Hex_to_bin(argv[i], 8, &bin_count, (unsigned char *) sn, 0);
+     if(ret <= 0 || bin_count != 8) {
+       sprintf(xorriso->info_text,
+        "-as %s %s : Malformed hex string. Expected 16 characters [0-9a-fA-F]",
+        whom, argv[i - 1]);
+       Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+       ret= 0; goto ex;
+     } else {
+       memcpy(xorriso->hfsp_serial_number, sn, 8);
+     }
    } else if(strcmp(argpt, "-graft-points")==0) {
      xorriso->allow_graft_points= 1;
    } else if(strcmp(argpt, "-path-list")==0 ||
diff --git a/xorriso/write_run.c b/xorriso/write_run.c
index 45ded673..8cb27b8c 100644
--- a/xorriso/write_run.c
+++ b/xorriso/write_run.c
@@ -861,6 +861,7 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
                                   xorriso->appended_part_types[i], part_image);
  }
  isoburn_igopt_set_disc_label(sopts, xorriso->ascii_disc_label); 
+ isoburn_igopt_set_hfsp_serial_number(sopts, xorriso->hfsp_serial_number);
 
  if(image!=NULL && 12+strlen(Xorriso_timestamP)<80) {
    strcpy(xorriso_id, xorriso->preparer_id);
diff --git a/xorriso/xorriso_private.h b/xorriso/xorriso_private.h
index 1f08bf8e..7d57b89a 100644
--- a/xorriso/xorriso_private.h
+++ b/xorriso/xorriso_private.h
@@ -400,6 +400,11 @@ struct XorrisO { /* the global context of xorriso */
  */
  char ascii_disc_label[Xorriso_disc_label_sizE];
 
+ /* HFS+ image serial number.
+    00...00 means that it shall be generated by libisofs.
+ */
+ uint8_t hfsp_serial_number[8];
+
  /* User settable PVD time stamps */
  time_t vol_creation_time;
  time_t vol_modification_time;
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index bbf84b76..2681fe04 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2012.05.27.165658"
+#define Xorriso_timestamP "2012.05.27.165938"