diff -ur xorriso-0.5.3/libisofs/eltorito.c xorriso-0.5.3-mod//libisofs/eltorito.c
--- xorriso-0.5.3/libisofs/eltorito.c	2010-04-13 18:16:58.000000000 +0200
+++ xorriso-0.5.3-mod//libisofs/eltorito.c	2010-04-17 16:00:42.452627715 +0200
@@ -552,7 +555,7 @@
     struct el_torito_validation_entry *ve =
         (struct el_torito_validation_entry*)buf;
     ve->header_id[0] = 1;
-    ve->platform_id[0] = 0; /* 0: 80x86, 1: PowerPC, 2: Mac */
+    ve->platform_id[0] = 0xef; /* 0: 80x86, 1: PowerPC, 2: Mac */
     ve->key_byte1[0] = 0x55;
     ve->key_byte2[0] = 0xAA;
 
@@ -787,6 +790,8 @@
     uint32_t checksum;
     size_t offset;
 
+    return ISO_SUCCESS;
+
     if (imgsize < 64) {
         return iso_msg_submit(t->image->id, ISO_ISOLINUX_CANT_PATCH, 0,
             "Isolinux image too small. We won't patch it.");
--- xorriso-0.5.3/xorriso/xorriso.c	2010-04-13 18:16:58.000000000 +0200
+++ xorriso-0.5.3-mod//xorriso/xorriso.c	2010-04-17 15:25:22.649625656 +0200
@@ -4882,7 +4882,7 @@
  m->boot_image_bin_form[0]= 0;
  m->boot_image_emul= 0;
  m->boot_image_cat_path[0]= 0;
- m->boot_image_load_size= 4 * 512;     /* hearsay out of libisofs/demo/iso.c */
+ m->boot_image_load_size= 2880 * 2 * 512;     /* hearsay out of libisofs/demo/iso.c */
 
 #ifdef Xorriso_with_isohybriD
  m->boot_image_isohybrid= 1;