échec de la gravure (comme beaucoup !)

bonsoir,
je suis confronté à des échecs systématiques de gravure (message could not perform end track) avec mon graveur DVDRW CIBOX IDE 16X, quel que soit le support.
J'utilise Nero, et tout fonctionnait bien jusqu'à ces derniers temps.
La principale modif que j'ai faite récemment sur le système est une mise à jour de Windows XP pro SP1.
Pour pallier ce problème, au fil de mes recherches sur le net, j'ai successivement mis à jour le firmware, réinstallé Nero, désactivé la gravure Windows, réinstallé les ASPI et les 2 contrôleurs ATA/ATAPI, enfin débranché-rebranché le graveur (esclave sur le canal IDE secondaire).
J'ai également tenté de graver à basse vitesse.
Rien n'y fait.
Voici le log Nero :
pat
*
1A21-0809-4130-2332-8523-1578

Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 17/07/2002 09:20:56
ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 26/10/2004 17:35:34
Nero Version: 6.6.0.8
Recorder: <DVDRW IDE 16X> Version: A190 - HA 1 TA 1 - 6.6.0.8
Adapter driver: <atapi> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: <DVD-16X OEM316B >Version: 1.00 - HA 1 TA 0 - 6.6.0.8
Adapter driver: <atapi> HA 1

=== Scsi-Device-Map ===
DiskPeripheral : ST360020A atapi Port 0 ID 0 DMA: On
CdRomPeripheral : DVD-16X OEM316B atapi Port 1 ID 0 DMA: On
CdRomPeripheral : DVDRW IDE 16X atapi Port 1 ID 1 DMA: On

=== CDRom-Device-Map ===
DVD-16X OEM316B D: CDRom0
DVDRW IDE 16X E: CDRom1
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 74448896 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 511MB (523760kB)
Free physical memory: 230MB (236244kB)
Memory in use : 54 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

22.11.2005
CD-ROM (ISO)
13:54:39 #1 Text 0 File Isodoc.cpp, Line 6172
Iso document burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : FALSE
Write : TRUE
Finalize CD : FALSE
Multisession : TRUE
Multisession type: : Start multisession
Burning mode : TAO
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

13:54:39 #2 Text 0 File Burncd.cpp, Line 2868
DVDRW IDE 16X
Super Link activated

13:54:39 #3 Text 0 File Reader.cpp, Line 127
Reader running

13:54:39 #4 Text 0 File Writer.cpp, Line 122
Writer DVDRW IDE 16X running

13:54:39 #5 ISO9660GEN -11 File geniso.cpp, Line 3293
First writeable address = 0 (0x00000000)

13:54:39 #6 Text 0 File Burncd.cpp, Line 3153
Turn on Track-At-Once, using CD-R/RW media

13:54:39 #7 Text 0 File DlgWaitCD.cpp, Line 259
Last possible write address on media: 359848 ( 79:59.73)
Last address to be written: 28172 ( 6:17.47)

13:54:39 #8 Text 0 File DlgWaitCD.cpp, Line 271
Write in overburning mode: NO (enabled: CD)

13:54:39 #9 Text 0 File DlgWaitCD.cpp, Line 2316
Recorder: DVDRW IDE 16X;
CDRW code: 00 97 17 01; OSJ entry from: Moser Baer India Limited
ATIP Data:
Special Info [hex] 1: A3 00 CF, 2: 61 11 01 (LI 97:17.01), 3: 4F 3B 4A (LO 79:59.74)
Additional Info [hex] 1: 24 2C DC, 2: 14 A4 4A, 3: 02 D2 80

13:54:39 #10 Text 0 File DlgWaitCD.cpp, Line 433
>>> Protocol of DlgWaitCD activities: <<<
=========================================

13:54:39 #11 Text 0 File ThreadedTransferInterface.cpp, Line 830
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 28173 (28173) = #28173/6:15.48
relocatable, disc pos for caching/writing not required/ required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 28171 blocks [DVDRW IDE 16X]
--------------------------------------------------------------

13:54:39 #12 Text 0 File ThreadedTransferInterface.cpp, Line 1043
Prepare recorder [DVDRW IDE 16X] for write in TAO
DAO infos:
==========
MCN: ""
TOCType: 0x00; Session Closed, disc not fixated
Tracks 1 to 1:
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 307200 58005504, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
-150 | lead-in | 0 | 0x41 | 0x00
-150 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
28173 | lead-out | 1 | 0x41 | 0x00

13:54:39 #13 Text 0 File ThreadedTransferInterface.cpp, Line 1111
Removed 2 run-out blocks from end of track 1. Length: 28173 -> 28171.

13:54:39 #14 Phase 24 File dlgbrnst.cpp, Line 1832
Caching of files started

13:54:39 #15 Text 0 File Burncd.cpp, Line 4040
Cache writing successful.

13:54:39 #16 Phase 25 File dlgbrnst.cpp, Line 1832
Caching of files completed

13:54:39 #17 Phase 36 File dlgbrnst.cpp, Line 1832
Burn process started at 10x (1 500 KB/s)

13:54:39 #18 Text 0 File ThreadedTransferInterface.cpp, Line 2609
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

13:54:39 #19 Text 0 File Mmc.cpp, Line 21235
Set BUFE: Super Link -> ON

13:55:40 #20 SCSI -1135 File Cdrdrv.cpp, Line 1435
SCSI Exec, HA 1, TA 1, LUN 0, buffer 0x05150000
Status: 0x04 (0x01, SCSI_ERR)
HA-Status 0x00 (0x00, OK)
TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x0C
Sense Qual: 0x00
CDB Data: 0x2A 0x00 0x00 0x00 0x00 0x20 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0x71 0x00 0x03 0x00 0x00 0x00 0x00 0x0A
0x00 0x00 0x00 0x00 0x0C 0x00

13:55:40 #21 CDR -1135 File Writer.cpp, Line 311
Write error

13:55:40 #22 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion

13:55:40 #23 CDR -201 File WriterStatus.cpp, Line 200
Invalid write state
DVDRW IDE 16X\H1 T1

13:55:40 #24 TRANSFER -18 File WriterStatus.cpp, Line 200
Could not perform EndTrack

13:55:40 #25 Text 0 File Mmc.cpp, Line 15908
<DVDRW IDE 16X > start Close Session

13:55:40 #26 Phase 38 File dlgbrnst.cpp, Line 1832
Burn process failed at 10x (1 500 KB/s)

Existing drivers:
File 'Drivers\ASPI32.SYS': Ver=4.71 (0002), size=16877 bytes, created 17/07/2002 08:53:02
File 'WNASPINT.DLL': Ver=V1.18, size=57344 bytes, created 02/11/2002 08:53:04
File 'Drivers\atapi.sys': Ver=5.1.2600.1106 (xpsp1.020828-1920), size=86912 bytes, created 07/10/2003 01:00:00 (Adapter driver for rec)

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

Mon graveur serait-il fichu ou connaissez-vous encore une ou des manoeuvres à tenter ?
Merci d'avance pour vos conseils.