Probleme gravure

Bonjour,
depuis quelques temps je n'arrive plus a graver un seul dvd je ne comprends pas ! la gravure echoue systematiquement donc voila =(

je vous poste le log nero :

mathieu
Hewlett-Packard Company
1C82-0000-19E5-MAAX-4009-3088-****

Windows XP 6.0
IA32
WinAspi: -
ahead WinASPI: File 'C:\Program Files\Nero\Nero 7\Core\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 02/11/2004 12:54:32

NT-SPTI used
Nero Version: 7.5.9.0
Internal Version: 7, 5, 9, 0
(Nero Express)
Recorder: <ATAPI DVD A DH16A1L> Version: KH15 - HA 1 TA 0 - 7.5.9.0
Adapter driver: <IDE> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ?
CD-ROM: <SCSI DVD-ROM >Version: 1.0 - HA 1 TA 1 - 7.5.9.0
Adapter driver: <SCSI> HA 1

=== Scsi-Device-Map ===
CdRomPeripheral : SCSI DVD-ROM 1.0 VClone Port 0 ID 0 DMA: Off

=== CDRom-Device-Map ===
ATAPI DVD A DH16A1L E: CDRom0
SCSI DVD-ROM K: CDRom1
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 83886080 (0) Byte
BUFE : 0
Physical memory : 2046MB (2095692kB)
Free physical memory: 1003MB (1027844kB)
Memory in use : 50
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

28.6.2008
Compilation ISO
12:28:35 #1 Text 0 File SCSIPTICommands.cpp, Line 411
LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

12:28:35 #2 Text 0 File Isodoc.cpp, Line 6509
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

12:28:36 #3 ISO9660GEN -11 File Geniso.cpp, Line 3332
First writeable address = 0 (0x00000000)

12:28:36 #4 Text 0 File Burncd.cpp, Line 3451
Turn on Disc-At-Once, using DVD media

12:28:36 #5 Text 0 File DlgWaitCD.cpp, Line 306
Last possible write address on media: 2298495 (510:46.45, 4489MB)
Last address to be written: 2143407 (476:18.57, 4186MB)

12:28:36 #6 Text 0 File DlgWaitCD.cpp, Line 318
Write in overburning mode: NO (enabled: CD)

12:28:36 #7 Text 0 File DlgWaitCD.cpp, Line 2903
Recorder: ATAPI DVD A DH16A1L, Media type: DVD-R
Disc Manufacturer: MCC 03 - RG20
Disc Application Code: 64, Disc Physical Code: 193

12:28:36 #8 Text 0 File DlgWaitCD.cpp, Line 490
>>> Protocol of DlgWaitCD activities: <<<
=========================================

12:28:36 #9 Text 0 File ThreadedTransferInterface.cpp, Line 821
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 2143408 (2143408) = #2143408/476:18.58
relocatable, disc pos for caching/writing not required/ required
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 2143408 blocks [E: ATAPI DVD A DH16A1L]
--------------------------------------------------------------

12:28:36 #10 Text 0 File ThreadedTransferInterface.cpp, Line 1024
Prepare [E: ATAPI DVD A DH16A1L] for write in CUE-sheet-DAO
DAO infos:
==========
MCN: ""
TOCType: 0x00; Session Closed, disc not fixated
Tracks 1 to 1: Idx 0 Idx 1 Next Trk
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 4389699584, ISRC ""
DAO layout:
===========
___Start_|____Track_|_Idx_|_CtrlAdr_|_____Size_|______NWA_|_RecDep__________
0 | lead-in | 0 | 0x41 | 0 | 0 | 0x00
0 | 1 | 0 | 0x41 | 2143408 | 0 | 0x00
0 | 1 | 1 | 0x41 | 2143408 | 0 | 0x00
2143408 | lead-out | 1 | 0x41 | 0 | 0 | 0x00

12:28:36 #11 Text 0 File SCSIPTICommands.cpp, Line 209
SPTILockVolume - completed successfully for FCTL_LOCK_VOLUME

12:28:36 #12 Phase 24 File dlgbrnst.cpp, Line 1746
Caching of files started

12:28:36 #13 Text 0 File Burncd.cpp, Line 4278
Cache writing successful.

12:28:36 #14 Phase 25 File dlgbrnst.cpp, Line 1746
Caching of files completed

12:28:36 #15 Phase 36 File dlgbrnst.cpp, Line 1746
Burn process started at 16x (22 160 Ko/s)

12:28:36 #16 Text 0 File ThreadedTransferInterface.cpp, Line 2743
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

12:28:36 #17 Text 0 File DVDR.cpp, Line 3058
Recording mode: Sequential Recording Mode for Multisession

12:28:36 #18 Text 0 File DVDR.cpp, Line 3214
Start write address at LBA 0
DVD high compatibility mode: Yes

12:28:36 #19 Text 0 File Cdrdrv.cpp, Line 9234
---- DVD Structure: Physical Format Information (00h) ----
Media Type: 0, Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 2.1 (33)
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: 26127F h
End Sector Number in Layer 0: 0 h (LBN: FFFD0000 h, 4193920 MB)
Data in Burst Cutting Area (BCA) does not exist
Start sector number of the current Border-Out: 0 h
Start sector number of the next Border-In: 0 h
Media Specific [16..63]:
00 60 00 10 20 30 40 50 - 00 00 00 21 00 00 00 00 .`...0@P...!....
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 ................

12:34:03 #20 SPTI -1135 File SCSIPassThrough.cpp, Line 179
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1135)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x0C
Sense Qual: 0x00
CDB Data: 0x2A 00 00 1E 30 A0 00 00 20 00 00 00
Sense Area: 0x70 00 03 00 00 00 00 0A 00 00 00 00 0C
Buffer x23c57080: Len x10000
0x8E A6 D5 75 39 E3 A7 13 7B 8E 35 1C E5 DD CE 69
0xA3 A9 2B B4 0C 1A 1D D0 53 78 F9 3B 35 DF C6 B0
0x18 68 3B 2F 5F C8 1C 9F 37 EC FC 61 00 9A B4 41

12:34:03 #21 CDR -1135 File Writer.cpp, Line 299
Write error
E: ATAPI DVD A DH16A1L

12:34:03 #22 Text 0 File DVDR.cpp, Line 3434
EndDAO: Last written address was 1978527

12:34:03 #23 Phase 133 File dlgbrnst.cpp, Line 1746
Writing short lead-out

12:34:38 #24 SPTI -1176 File SCSIPassThrough.cpp, Line 179
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1176)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x72
Sense Qual: 0x00
CDB Data: 0x00 00 00 00 00 00 00 00 00 00 00 00
Sense Area: 0x71 00 03 00 00 00 00 0A 00 00 00 00 72

12:34:39 #25 SPTI -1169 File SCSIPassThrough.cpp, Line 179
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1169)
Sense Key: 0x02 (KEY_NOT_READY)
Sense Code: 0x04
Sense Qual: 0x08
CDB Data: 0x52 01 00 00 00 02 00 00 24 00 00 00
Sense Area: 0x70 00 02 00 00 00 00 0A 00 00 00 00 04 08
Buffer x053f9a00: Len x24

12:34:39 #26 SPTI -1169 File SCSIPassThrough.cpp, Line 179
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1169)
Sense Key: 0x02 (KEY_NOT_READY)
Sense Code: 0x04
Sense Qual: 0x08
CDB Data: 0x5B 01 02 00 00 03 00 00 00 00 00 00
Sense Area: 0x70 00 02 00 00 00 00 0A 00 00 00 00 04 08

12:34:45 #27 CDR -1176 File WriterStatus.cpp, Line 162
Session fixation error
E: ATAPI DVD A DH16A1L

12:34:45 #28 TRANSFER -24 File WriterStatus.cpp, Line 162
Could not perform end of Disc-at-once

12:34:45 #29 Phase 38 File dlgbrnst.cpp, Line 1746
Burn process failed at 16x (22 160 Ko/s)

12:34:45 #30 Text 0 File SCSIPTICommands.cpp, Line 254
SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME

12:34:47 #31 Text 0 File Cdrdrv.cpp, Line 10467
DriveLocker: UnLockVolume completed

12:34:47 #32 Text 0 File SCSIPTICommands.cpp, Line 411
UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL


Existing drivers:
File 'Drivers\ADPU160M.SYS': Ver=6.4.645.100 (NT.051018-1332), size=98408 bytes, created 02/11/2006 11:50:35
File 'Drivers\CDRALW2K.SYS': Ver=8.0.0.212 , size=2560 bytes, created 18/10/2006 03:00:00
File 'Drivers\PXHELP20.SYS': Ver=3.00.67a, size=43872 bytes, created 20/06/2007 03:00:00 (Prassi/Veritas driver for win 2K)
File 'Drivers\scsiport.sys': Ver=6.0.6000.16386 (vista_rtm.061101-2205), size=142904 bytes, created 19/01/2008 09:42:10 (Adapter driver for src)

Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon
====== *** Nero Burning ROM, History File *** ======