gebrannte CDs nicht lesbar

System
-----------------------
K3b Version: 0.12.15

KDE Version: 3.4.2 Level "b"
QT Version: 3.3.4
Kernel: 2.6.13-15.11-default
Devices
-----------------------
SONY CD-RW CRX220E1 6YS1 (/dev/hdc, ) at /media/cdrecorder [CD-R; CD-RW; CD-Rom] [CD-Rom; CD-R; CD-RW] [SAO; TAO; RAW; SAO/R96P; SAO/R96R; RAW/R16; RAW/R96P; RAW/R96R]

DVDROM UNKNOWN 12X (/dev/hdd, ) at /media/dvd [CD-Rom; DVD-Rom] [Fehler] [Keine]
Used versions
-----------------------
cdrecord: 2.1

cdrecord
-----------------------
/usr/bin/cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
/usr/bin/cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().
/usr/bin/cdrecord: WARNING: This causes a high risk for buffer underruns.
/usr/bin/cdrecord: Warning: not running as root user, fs= option ignored.
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
/usr/bin/cdrecord: Warning: using inofficial libscg transport code version (okir@suse.de-scsi-linux-sg.c-1.83-resmgr-patch '@(#)scsi-linux-sg.c 1.83 04/05/20 Copyright 1997 J. Schilling').
SCSI buffer size: 64512
Cdrecord-Clone 2.01 (i686-suse-linux) Copyright (C) 1995-2004 Jörg Schilling
Note: This version is an unofficial (modified) version
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to http://www.suse.de/feedback
Note: The author of cdrecord should not be bothered with problems in this version.
TOC Type: 1 = CD-ROM
Using libscg version 'schily-0.8'.
Driveropts: 'burnfree'
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'SONY '
Identifikation : 'CD-RW CRX220E1 '
Revision : '6YS1'
Device seems to be: Generic mmc CD-RW.
Current: 0x0009
Profile: 0x000A
Profile: 0x0009 (current)
Profile: 0x0008
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 : 1895168 = 1850 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 699 MB
Total size: 803 MB (79:38.02) = 358352 sectors
Lout start: 804 MB (79:40/02) = 358352 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 5
Is not unrestricted
Is not erasable
Disk sub type: Medium Type B, low Beta category (B-) (4)
ATIP start of lead in: -11835 (97:24/15)
ATIP start of lead out: 359849 (79:59/74)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 24
Manufacturer: SONY Corporation
Blocks total: 359849 Blocks current: 359849 Blocks remaining: 1497
Forcespeed is OFF.
Starting to write CD/DVD at speed 40 in real SAO mode for single session.
Last chance to quit, starting real write in 2 seconds.
1 seconds.
0 seconds.
Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is OFF.
Turning BURN-Free on
Performing OPC...
Sending CUE sheet...
Writing pregap for track 1 at -150
Starting new track at sector: 0
Track 01: 0 of 699 MB written.
Track 01: 1 of 699 MB written (fifo 100%) [buf 66%] 0.5x.
Track 01: 2 of 699 MB written (fifo 98%) [buf 86%] 14.3x.
Track 01: 3 of 699 MB written (fifo 98%) [buf 97%] 20.2x.
...
...
...
Track 01: 696 of 699 MB written (fifo 98%) [buf 92%] 23.9x.
Track 01: 697 of 699 MB written (fifo 100%) [buf 97%] 18.0x.
Track 01: 698 of 699 MB written (fifo 100%) [buf 95%] 15.8x.
Track 01: 699 of 699 MB written (fifo 100%) [buf 97%] 17.3x.
Track 01: Total bytes read/written: 733904896/733904896 (358352 sectors).
Writing time: 325.390s
Average write speed 15.2x.
Min drive buffer fill was 71%
Fixating...
/usr/bin/cdrecord: Success. flush cache: scsi sendcmd: no error
CDB: 35 00 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 0C 00 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x0C Qual 0x00 (write error) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 25.117s timeout 200s
Trouble flushing the cache
Fixating time: 25.167s
/usr/bin/cdrecord: fifo had 11560 puts and 11560 gets.
/usr/bin/cdrecord: fifo was 0 times empty and 10288 times full, min fill was 87%.
BURN-Free was never needed.

cdrecord command:
-----------------------
/usr/bin/cdrecord -v gracetime=2 dev=/dev/hdc speed=52 -dao driveropts=burnfree -eject -data /home/Nik/OperaDownloads/Linuxe/kubuntu-6.06.1-desktop-i386.iso

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