$ sudo cdrecord -eject speed=52 dev=6,1,0 driveropts=burnfree 6.1-RELEASE-i386-disc1.iso
cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
cdrecord: Continuing in 5 seconds...
Cdrecord-Clone 2.01 (i386-unknown-freebsd4.10) Copyright (C) 1995-2004 Jörg Schilling
scsidev: '6,1,0'
scsibus: 6 target: 1 lun: 0
Using libscg version 'schily-0.8'.
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'HL-DT-ST'
Identifikation : 'CD-RW GCE-8523B '
Revision       : '1.01'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-2 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Starting to write CD/DVD at speed 52 in real TAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.
Turning BURN-Free on
Track 01: Total bytes read/written: 529784832/529784832 (258684 sectors).