pikakilla@woot:~$ cdrecord -sao  speed=32 ~/Desktop/KNOPPIX_V5.0.1CD-2006-06-01-DE.iso
Cdrecord-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Joerg Schilling
NOTE: this version of cdrecord is an inofficial (modified) release of cdrecord
      and thus may have bugs that are not present in the original version.
      Please send bug reports and support requests to <cdrtools@packages.debian.org>.
      The original author should not be bothered with problems of this version.

cdrecord: Warning: Running on Linux-2.6.16-ck3
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
scsidev: '/dev/cdrw'
devname: '/dev/cdrw'
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 'debian-0.8debian2'.
cdrecord: Warning: using inofficial version of libscg (debian-0.8debian2 '@(#)scsitransp.c      1.91 04/06/17 Copyright 1988,1995,2000-2004 J. Schilling').
Device type    : Removable CD-ROM
Version        : 0
Response Format: 1
Vendor_info    : 'SAMSUNG '
Identifikation : 'CD-R/RW SW-248B '
Revision       : 'R503'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96R RAW/R16 RAW/R96R
Starting to write CD/DVD at speed 32 in real SAO mode for single session.
Last chance to quit, starting real write      0 seconds. Operation starts.
Turning BURN-Free off
cdrecord: Success. send opc: scsi sendcmd: no error
CDB:  54 01 00 00 00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 73 03 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x73 Qual 0x03 (power calibration area error) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 12.205s timeout 200s