Here's the output:

jchildrose@workstation1:~$ nautilus-cd-burner --source-iso=
ubuntu-6.06.1-desktop-i386.iso
launching command: cdrecord fs=16m dev=/dev/hdd -dao driveropts=burnfree -v
-data -nopad /home/jchildrose/ubuntu-6.06.1-desktop-i386.iso
cdrecord stderr: cdrecord: Warning: Running on Linux-2.6.17-11-generic
cdrecord stderr: cdrecord: There are unsettled issues with Linux-2.5 and
newer.
cdrecord stderr: cdrecord: If you have unexpected problems, please try
Linux-2.4 or Solaris.
cdrecord stderr: scsidev: '/dev/hdd'
cdrecord stderr: devname: '/dev/hdd'
cdrecord stderr: scsibus: -2 target: -2 lun: -2
cdrecord stderr: Warning: Open by 'devname' is unintentional and not
supported.
cdrecord stderr: Linux sg driver version: 3.5.27
cdrecord stderr: Error: Cannot gain SYS_RAWIO capability.Is cdrecord
installed SUID root?
cdrecord stderr: : Operation not permitted
cdrecord stderr: cdrecord: Warning: using inofficial version of libscg (
debian-0.8debian2 '@(#)scsitransp.c      1.91 04/06/17 Copyright
1988,1995,2000-2004 J. Schilling').
cdrecord stderr: SCSI buffer size: 64512
cdrecord stderr: cdrecord: This version of cdrecord does not include
DVD-R/DVD-RW support code.
cdrecord stderr: cdrecord: See /usr/share/doc/cdrecord/README.DVD.Debian for
details on DVD support.
cdrecord stdout: Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C)
1995-2005 Joerg Schilling
cdrecord stdout: NOTE: this version of cdrecord is an inofficial (modified)
release of cdrecord
cdrecord stdout:       and thus may have bugs that are not present in the
original version.
cdrecord stdout:       Please send bug reports and support requests to <
<email address hidden>>.
cdrecord stdout:       The original author should not be bothered with
problems of this version.
cdrecord stdout:
cdrecord stdout: TOC Type: 1 = CD-ROM
cdrecord stdout: Using libscg version 'debian-0.8debian2'.
cdrecord stdout: Driveropts: 'burnfree'
cdrecord stdout: atapi: 1
cdrecord stdout: Device type    : Removable CD-ROM
cdrecord stdout: Version        : 0
cdrecord stdout: Response Format: 3
cdrecord stdout: Capabilities   :
cdrecord stdout: Vendor_info    : 'ATAPI   '
cdrecord stdout: Identifikation : 'DVD DD 8X16X8X16'
cdrecord stdout: Revision       : 'GSOB'
cdrecord stdout: Device seems to be: Generic mmc2 DVD-R/DVD-RW.
cdrecord stdout: Current: 0x0009
cdrecord stdout: Profile: 0x002B
cdrecord stdout: Profile: 0x001B
cdrecord stdout: Profile: 0x001A
cdrecord stdout: Profile: 0x0016
cdrecord stdout: Profile: 0x0015
cdrecord stdout: Profile: 0x0014
cdrecord stdout: Profile: 0x0013
cdrecord stdout: Profile: 0x0011
cdrecord stdout: Profile: 0x0010
cdrecord stdout: Profile: 0x000A
cdrecord stdout: Profile: 0x0009 (current)
cdrecord stdout: Profile: 0x0008
cdrecord stdout: Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
cdrecord stdout: Driver flags   : MMC-3 SWABAUDIO BURNFREE
cdrecord stdout: Supported modes: TAO PACKET SAO SAO/R96R RAW/R16 RAW/R96R
cdrecord stdout: Drive buf size : 1073152 = 1048 KB
cdrecord stdout: FIFO size      : 16777216 = 16384 KB
cdrecord stderr: Error: Cannot gain SYS_RAWIO capability.Is cdrecord
installed SUID root?
cdrecord stderr: : Operation not permitted
cdrecord stdout: Track 01: data   698 MB
cdrecord stdout: Total size:      802 MB (79:27.81) = 357586 sectors
cdrecord stdout: Lout start:      802 MB (79:29/61) = 357586 sectors
cdrecord stdout: Current Secsize: 2048
cdrecord stdout: ATIP info from disk:
cdrecord stdout:   Indicated writing power: 4
cdrecord stdout:   Is not unrestricted
cdrecord stdout:   Is not erasable
cdrecord stdout:   Disk sub type: Medium Type A, low Beta category (A-) (2)
cdrecord stdout:   ATIP start of lead in:  -12508 (97:15/17)
cdrecord stdout:   ATIP start of lead out: 359845 (79:59/70)
cdrecord stdout: Disk type:    Short strategy type (Phthalocyanine or
similar)
cdrecord stdout: Manuf. index: 22
cdrecord stdout: Manufacturer: Ritek Co.
cdrecord stdout: Blocks total: 359845 Blocks current: 359845 Blocks
remaining: 2259
cdrecord stdout: Starting to write CD/DVD at speed 48 in real SAO mode for
single session.
cdrecord stdout: Last chance to quit, starting real write    0 seconds.
Operation starts.
cdrecord stdout: Waiting for reader process to fill input buffer ... input
buffer ready.
cdrecord stdout: BURN-Free is ON.
cdrecord stdout: Performing OPC...
cdrecord stdout: Sending CUE sheet...
cdrecord stderr: cdrecord: Success. read track info: scsi sendcmd: no error
cdrecord stderr: CDB:  52 01 00 00 00 FF 00 00 1C 00
cdrecord stderr: status: 0x2 (CHECK CONDITION)
cdrecord stderr: Sense Bytes: 70 00 05 00 00 00 00 12 00 00 00 00 24 00 00
00
cdrecord stderr: Sense Key: 0x5 Illegal Request, Segment 0
cdrecord stderr: Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
cdrecord stderr: Sense flags: Blk 0 (not valid)
cdrecord stderr: resid: 28
cdrecord stderr: cmd finished after 0.002s timeout 240s
cdrecord stderr: cdrecord: Cannot get next writable address for 'invisible'
track.
cdrecord stderr: cdrecord: This means that we are checking recorded media.
cdrecord stderr: cdrecord: This media cannot be written in streaming mode
anymore.
cdrecord stderr: cdrecord: If you like to write to 'preformatted' RW media,
try to blank the media first.
cdrecord stderr: cdrecord: WARNING: Drive returns wrong startsec (0) using
-150
cdrecord stdout: Writing pregap for track 1 at -150
cdrecord stdout: Starting new track at sector: 0
cdrecord stdout: Track 01:  698 of  698 MB written (fifo 100%) [buf  96%]
48.4x.
cdrecord stdout: Track 01: Total bytes read/written: 732336128/732336128
(357586 sectors).
cdrecord stdout: Writing  time:  156.829s
cdrecord stdout: Average write speed  31.3x.
cdrecord stdout: Min drive buffer fill was 17%
cdrecord stdout: Fixating...
cdrecord stdout: Fixating time:   27.913s
process stdout: HUP
cdrecord stderr: cdrecord: fifo had 11536 puts and 11536 gets.
cdrecord stderr: cdrecord: fifo was 0 times empty and 5489 times full, min
fill was 94%.
process stderr: HUP