To determine the device name under AIX 4.x

• Use SMIT (System Management Interface Tool):
  From SMIT's main menu choose: Devices / CD ROM Drive / List all defined CD ROM drives

  		cd0 Defined	00-00-0S-5,0 Other SCSI CD-ROM Drive
  		

  
  
  
• From the shell prompt:

   root@aixserver# lsdev -C -c cdrom
   cd0 Defined 00-00-0S-50 Other SCSI CD-ROM Drive