problème pour graver DVD: "erreur de cible non trouvée"

bonjour,
j'ai besoin d'aide...

lorsque que je veux graver un DVD-R sans multisession avec nero, la gravure echoue et me met "erreur de cible non trouvée".

Par ailleurs, llorsque que je veux graver un DVD-R avec multisession avec nero, la gravure echoue également et nero me met "impossible d'effectuer la fonction disc at once".

pour plus de détails, j'ai acheté recemment des DVD-R de marque philips (x16) pour la remière fois...et depuis je n'arrive plus à graver.
enfin, voici le rapport du premier problème mentionné (erreur de cible non trouvée):
Guillaume

1A22-030K-0010-1285-8535-0523

Windows XP 5.1
IA32
WinAspi: -
ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.59, size=160016 bytes, created 17/06/2003 15:25:04
Version de Nero : 6.0.0.13
Graveur : <Slimtype DVDRW SOSW-852S>Version: PRS9 - HA 1 TA 0 - 6.0.0.13
Pilote d'adaptateur :<atapi> HA 1
Drive buffer : 2048kB
Bus Type : via Inquiry data (1) -> ATAPI, detected: ATAPI
Connected to MMC as unknown drive with class-nr : 1
Drive is autodetected - recorder class: Std. MMC recorder
CD-ROM : <Slimtype DVDRW SOSW-852S >Version: PRS9 - HA 1 TA 0 - 6.0.0.13
Pilote d'adaptateur :<atapi> HA 1

=== Scsi-Device-Map ===
DiskPeripheral : IC25N060ATMR04-0 atapi Port 0 ID 0 DMA: On
CdRomPeripheral : Slimtype DVDRW SOSW-852S atapi Port 1 ID 0 DMA: On

=== CDRom-Device-Map ===
Slimtype DVDRW SOSW-852S E: CDRom0
=======================

AutoRun : 1
Excluded drive IDs:
CmdQueuing : 1
CmdNotification: 2
WriteBufferSize: 72351744 (0) Byte
ShowDrvBufStat : 0
EraseSpeed : 0
BUFE : 0
Physical memory : 494MB (506288kB)
Free physical memory: 118MB (121020kB)
Memory in use : 76 %
Uncached PFiles: 0x0
Use Static Write Speed Table: 0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

11.9.2007
Compilation ISO
14:15:04 #1 Text 0 File Isodoc.cpp, Line 5805
Iso document burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : FALSE
Write : TRUE
Finalize CD : FALSE
Multisession : TRUE
Multisession type: : Start multisession
Burning mode : DAO
Mode : 1
ISO Level : 1 (Max. of 11 = 8 + 3 char)
Character set : ISO 9660
Joliet : TRUE
Allow pathdepth more than 8 directories : TRUE
Allow more than 255 characters in path : TRUE
Write ISO9660 ;1 file extensions : TRUE

14:15:04 #2 Text 0 File Reader.cpp, Line 118
Reader running

14:15:04 #3 Text 0 File Writer.cpp, Line 127
Writer Slimtype DVDRW SOSW-852S running

14:15:04 #4 ISO9660GEN -11 File geniso.cpp, Line 3854
First writeable address = 0 (0x00000000)

14:15:04 #5 Text 0 File Burncd.cpp, Line 3176
Turn on Disque entier, using DVD media

14:15:23 #6 Text 0 File DlgWaitCD.cpp, Line 228
Last possible write address on media: 2297887 (510:38.37)
Last address to be written: 2287343 (508:17.68)

14:15:23 #7 Text 0 File DlgWaitCD.cpp, Line 233
Write in overburning mode: FALSE

14:15:23 #8 Text 0 File DlgWaitCD.cpp, Line 1722
Recorder: Slimtype DVDRW SOSW-852S, Media type: DVD-R
Disc Manufacturer: INFOME - DIAR30
Disc Application Code: 64, Disc Physical Code: 193

14:15:23 #9 Text 0 File ThreadedTransferInterface.cpp, Line 769
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 (CTransferItem)
2 indices, index0 (150) not provided
original disc pos #0 + 2287344 (2287344) = #2287344/508:17.69
relocatable, disc pos for caching/writing not required/required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 2287344 blocks [Slimtype DVDRW SOSW-852S ]
--------------------------------------------------------------

14:15:23 #10 Text 0 File ThreadedTransferInterface.cpp, Line 938
Prepare recorder [Slimtype DVDRW SOSW-852S ] for write in CUE-sheet-DAO
DAO infos:
==========
MCN: ""
TOCType: 0x00; Session Closed, disc fixated
Tracks 1 to 1:
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 307200 4684787712, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_RecDep_|_CtrlAdr_
-150 | lead-in | 0 | 0x00 | 0x41
-150 | 1 | 0 | 0x00 | 0x41
0 | 1 | 1 | 0x00 | 0x41
2287344 | lead-out | 1 | 0x00 | 0x41

14:15:23 #11 Phase 24 File dlgbrnst.cpp, Line 1843
Début de mise en cache des fichiers

14:15:23 #12 Phase 25 File dlgbrnst.cpp, Line 1843
Cache des fichiers terminé

14:15:23 #13 Phase 36 File dlgbrnst.cpp, Line 1843
Début de gravure à 2x (2 760 Ko/s)

14:15:23 #14 Text 0 File ThreadedTransferInterface.cpp, Line 2136
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

14:15:23 #15 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 28:16,436 (1696436ms) -> OK

14:15:23 #16 Text 0 File DVDR.cpp, Line 1497
Recording mode: Sequential Recording Mode

14:15:23 #17 Text 0 File Mmc.cpp, Line 18973
Set BUFE: SMART-BURN -> ON , Generic write control : ON

14:15:23 #18 Text 0 File DVDR.cpp, Line 1612
Start write address at LBA 0
DVD high compatibility mode: Yes

14:15:23 #19 Text 0 File Cdrdrv.cpp, Line 7906
---- DVD Structure: Physical Format Information (00h) ----
Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD-R (2), Part Version: 5
Disc Size: 120 mm, Maximum Rate: <not specified> (F h)
Number of Layers: 1, Track Path: Parallel Track Path (PTP), Layer Type: recordable
Linear Density: 0,267 um/bit, Track Density: 0,74 um/track
Starting Physical Sector Number of Data Area: 30000 h (DVD-ROM, DVD-R/-RW, DVD+R/+RW)
End Physical Sector Number of Data Area: 0 h
End Sector Number in Layer 0: 0 h
Data in Burst Cutting Area (BCA) does not exist
Media Specific:
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................

14:15:27 #20 SCSI -400 File Cdrdrv.cpp, Line 1415
SCSI Exec, HA 1, TA 0, LUN 0, buffer 0x03B90000
Status: 0x04 (0x01, SCSI_ERR)
HA-Status 0x00 (0x00, OK)
TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND)
Sense Key: 0x05 (KEY_ILLEGAL_REQUEST)
Sense Code: 0x27
Sense Qual: 0x00
CDB Data: 0x2A 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0A
0x00 0x00 0x00 0x00 0x27 0x00

14:15:27 #21 CDR -400 File Writer.cpp, Line 335
Erreur de cible non spécifiée

14:15:27 #22 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion

14:15:27 #23 Text 0 File ThreadedTransfer.cpp, Line 222
conversion idle, stopping reader

14:15:27 #24 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 0:00,000 (0ms) -> OK

14:15:27 #25 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 0:00,000 (0ms) -> OK

14:15:27 #26 Phase 38 File dlgbrnst.cpp, Line 1843
La gravure a échoué à 2x (2 760 Ko/s)


Existing drivers:
File 'Drivers\CDRALW2K.SYS': Ver=8.0.0.212 , size=9464 bytes, created 27/07/2007 01:06:18
File 'Drivers\PXHELP20.SYS': Ver=3.00.56a, size=43528 bytes, created 27/07/2007 01:06:18 (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=5.1.2600.2180 (xpsp_sp2_rtm.040803-2158), size=95360 bytes, created 05/08/2004 05:00:00 (Adapter driver for rec)

Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)

Pouvez vous m'aider ç regler ce problème
merci d'avance