Can't boot Solaris 11.1 from burned DVD in a Mac

Question

Hello,
The goal is to install Solaris 11.1 in a Sun Sparc T5120.
Downloaded the Solaris for Sparc 11.1 Text install iso image and then burned it to a DVD-R in a Mac using the Disk Utility. The DVD mounts OK in the Mac but when trying to boot from it I in the Sparc system I get this:
{0} ok show-disks
a) /pci@0/pci@0/pci@2/scsi@0/disk
b) /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2/disk
q) NO SELECTION
Enter Selection, q to quit: q
{0} ok devalias
ttya                     /ebus@c0/serial@0,ca0000
nvram                    /virtual-devices/nvram@3
net3                     /pci@0/pci@0/pci@1/pci@0/pci@3/network@0,1
net2                     /pci@0/pci@0/pci@1/pci@0/pci@3/network@0
net1                     /pci@0/pci@0/pci@1/pci@0/pci@2/network@0,1
net0                     /pci@0/pci@0/pci@1/pci@0/pci@2/network@0
net                      /pci@0/pci@0/pci@1/pci@0/pci@2/network@0
cdrom                    /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2/disk@0:f
disk3                    /pci@0/pci@0/pci@2/scsi@0/disk@3
disk2                    /pci@0/pci@0/pci@2/scsi@0/disk@2
disk1                    /pci@0/pci@0/pci@2/scsi@0/disk@1
disk0                    /pci@0/pci@0/pci@2/scsi@0/disk@0
disk                     /pci@0/pci@0/pci@2/scsi@0/disk@0
scsi                     /pci@0/pci@0/pci@2/scsi@0
virtual-console          /virtual-devices/console@1
name                     aliases
{0} ok boot cdrom
Boot device: /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2/disk@0:f  File and args:
ERROR: boot-read fail
Can't open boot device
Any ideas? Should I try burning the DVD again in a different system?

Answer 1

Tried with a CD and another DVD burned in a windows laptop, same result...
Suspecting on  the DVD/USB module:
{0} ok probe-scsi-all
/pci@0/pci@0/pci@2/scsi@0
MPT Version 1.05, Firmware Version 1.27.00.00
Target 0
Unit 0  Disk    ATA    TOSHIBA MQ01ABD01U      625142448 Blocks, 320 GB
  SATA device  PhyNum 0
Target 1
Unit 0  Disk    ATA    TOSHIBA MQ01ABD01U      625142448 Blocks, 320 GB
  SATA device  PhyNum 1
/pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2
  Unit 0  Removable Read Only device    TSSTcorpCD/DVDW TS-T632ASR03
{0} ok boot /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2
Boot device: /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2  File and args:
ERROR: boot-read fail
Boot load failed
{0} ok boot cdrom2
ChassisSerialNumber BEL0923B98
SPARC Enterprise T5120, No Keyboard
Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
OpenBoot 4.29.1, 16256 MB memory available, Serial #88050686.
Ethernet address 0:21:28:3f:8b:fe, Host ID: 853f8bfe.
Boot device: /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2/disk  File and args:
ERROR: boot-read fail
Evaluating:
Can't open boot device
{0} ok boot cdrom
Boot device: /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/storage@2/disk@0:f  File and args:
ERROR: boot-read fail
Can't open boot device