I haven't burnt a CD on my laptop for a while, but when I fired up Arson to
burn one today, I got the following errors :

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: Warning: Running on Linux-2.6.12-1-386
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
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/hdc'
devname: '/dev/hdc'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Error: Cannot gain SYS_RAWIO capability.Is cdrecord installed SUID root?
: Operation not permitted
cdrecord: Warning: using inofficial version of libscg (debian-0.8debian2
'@(#)scsitransp.c  1.91 04/06/17 Copyright 1988,1995,2000-2004 J.
Schilling').
SCSI buffer size: 64512
Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 1995-2005 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.
TOC Type: 1 = CD-ROM
Using libscg version 'debian-0.8debian2'.
Driveropts: 'burnproof'
atapi: 1
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'Slimtype'
Identifikation : 'COMBO LSC-24082K'
Revision       : 'JKU5'
Device seems to be: Generic mmc2 DVD-ROM.
Current: 0x0009
Profile: 0x0010
Profile: 0x000A
Profile: 0x0009 (current)
Profile: 0x0008
Profile: 0x0002
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE FORCESPEED
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1422080 = 1388 KB
FIFO size      : 4194304 = 4096 KB
cdrecord: Operation not permitted. Cannot send SCSI cmd via ioctl
Track 01: data    92 MB
Total size:      105 MB (10:29.38) = 47204 sectors
Lout start:      106 MB (10:31/29) = 47204 sectors

What is this SCSI error ?

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first try burning as root
go back to cdrtools-2.01.01alpha01
or use a newer kernel in combination with alpha03 or alpha04

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