hcook@triple ~ $ cdrecord -dao dev=/dev/hda Desktop/Metallica_no_Justice.iso 
Cdrecord-ProDVD-Clone 2.01.01a10 (i686-pc-linux-gnu) Copyright (C) 1995-2006 J��rg Schilling
cdrecord: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2).
cdrecord: WARNING: This causes a high risk for buffer underruns.
cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
cdrecord: WARNING: This causes a high risk for buffer underruns.
scsidev: '/dev/hda'
devname: '/dev/hda'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.8'.
Device type    : Removable CD-ROM
Version        : 0
Response Format: 1
Vendor_info    : 'PLEXTOR '
Identifikation : 'DVDR   PX-716A  '
Revision       : '1.03'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
cdrecord: Operation not permitted. Cannot send SCSI cmd via ioctl