Impossible de graver

salut,

voilà depuis quelque temps je n'arrive plus à graver ni cd ni dvd. Pourtant, j'ai néro 7. Hier, j'ai voulu graver et ma gravure à échouer. j'ai sauvegardé le log que je vous transmet .
1C80-00K2-19E5-M22X-4031-0838-****

Windows XP 5.1
IA32
WinAspi: -

NT-SPTI used
Nero Version: 7.9.6.0
Internal Version: 7, 9, 6, 0

Recorder: <TSSTcorp CD/DVDW TS-H552U>Version: US03 - HA 1 TA 0 - 7.9.6.0
Adapter driver: <IDE> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ?
CD-ROM: <TSSTcorp CD/DVDW TS-H552U>Version: US03 - HA 1 TA 0 - 7.9.6.0
Adapter driver: <IDE> HA 1

Scsi-Device-Map

DiskPeripheral : ST380011A atapi Port 0 ID 0 DMA: On
CdRomPeripheral : TSSTcorp CD/DVDW TS-H552U atapi Port 1 ID 0 DMA: On

CDRom-Device-Map

TSSTcorp CD/DVDW TS-H552U E: CdRom0
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 40894464 (0) Byte
BUFE : 0
Physical memory : 255MB (261616kB)
Free physical memory: 52MB (53776kB)
Memory in use : 79 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

29.5.2007
CD-ROM (ISO)
20:18:22 #1 Text 0 File SCSIPTICommands.cpp, Line 424
LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

20:18:23 #2 Text 0 File Isodoc.cpp, Line 6663
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

20:18:24 #3 Text 0 File Burncd.cpp, Line 3196
TSSTcorp CD/DVDW TS-H552U
Super Link activés

20:18:25 #4 ISO9660GEN -11 File Geniso.cpp, Line 3343
First writeable address = 0 (0x00000000)

20:18:25 #5 Text 0 File Burncd.cpp, Line 3508
Turn on Disc-At-Once, using CD-R/RW media

20:18:49 #6 Text 0 File DlgWaitCD.cpp, Line 307
Last possible write address on media: 359845 ( 79:59.70)
Last address to be written: 334839 ( 74:26.39)

20:18:49 #7 Text 0 File DlgWaitCD.cpp, Line 319
Write in overburning mode: NO (enabled: CD)

20:18:49 #8 Text 0 File DlgWaitCD.cpp, Line 2964
Recorder: TSSTcorp CD/DVDW TS-H552U;
CDR code: 00 97 26 66; OSJ entry from: CMC Magnetics Corporation
ATIP Data:
Special Info [hex] 1: D0 00 98, 2: 61 1A 42 (LI 97:26.66), 3: 4F 3B 47 (LO 79:59.71)
Additional Info [hex] 1: 00 00 80 (invalid), 2: 00 80 00 (invalid), 3: 00 80 80 (invalid)

20:18:49 #9 Text 0 File DlgWaitCD.cpp, Line 493
>>> Protocol of DlgWaitCD activities: <<<
=========================================
Insert the disc to write to.
(Medium in drive: Inconnu. Medium required by compilation: CD-R/RW.)

20:18:49 #10 Text 0 File ThreadedTransferInterface.cpp, Line 793
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 334840 (334840) = #334840/74:24.40
relocatable, disc pos for caching/writing not required/ required
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 334840 blocks [E: TSSTcorp CD/DVDW TS-H552U]
--------------------------------------------------------------

20:18:49 #11 Text 0 File ThreadedTransferInterface.cpp, Line 995
Prepare [E: TSSTcorp CD/DVDW TS-H552U] 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 307200 686059520, ISRC ""
DAO layout:
===========
___Start_|____Track_|_Idx_|_CtrlAdr_|_____Size_|______NWA_|_RecDep__________
-150 | lead-in | 0 | 0x41 | 0 | 0 | 0x00
-150 | 1 | 0 | 0x41 | 0 | 0 | 0x00
0 | 1 | 1 | 0x41 | 334840 | 0 | 0x00
334840 | lead-out | 1 | 0x41 | 0 | 0 | 0x00

20:18:49 #12 Text 0 File SCSIPTICommands.cpp, Line 215
SPTILockVolume - completed successfully for FSCTL_LOCK_VOLUME

20:18:49 #13 Text 0 File Burncd.cpp, Line 4294
Caching options: cache CDRom or Network-Yes, small files-No (<64KB)

20:18:49 #14 Phase 24 File dlgbrnst.cpp, Line 1762
Caching of files started

20:18:49 #15 Text 0 File Burncd.cpp, Line 4413
Cache writing successful.

20:18:49 #16 Phase 25 File dlgbrnst.cpp, Line 1762
Caching of files completed

20:18:49 #17 Phase 36 File dlgbrnst.cpp, Line 1762
Burn process started at 40x (6 000 Ko/s)

20:18:49 #18 Text 0 File ThreadedTransferInterface.cpp, Line 2721
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

20:18:50 #19 Text 0 File MMC.cpp, Line 17687
StartDAO : CD-Text - Off

20:18:50 #20 Text 0 File MMC.cpp, Line 22363
Set BUFE: Super Link -> ON

20:18:50 #21 Text 0 File MMC.cpp, Line 17915
CueData, Len=32
41 00 00 14 00 00 00 00
41 01 00 10 00 00 00 00
41 01 01 10 00 00 02 00
41 aa 01 14 00 4a 1a 28

20:18:50 #22 Text 0 File ThreadedTransfer.cpp, Line 269
Pipe memory size 40868800

20:21:50 #23 SPTI -1114 File SCSIPassThrough.cpp, Line 179
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1114)
Sense Key: 0x06 (KEY_UNIT_ATTENTION)
Sense Code: 0x29
Sense Qual: 0x00
CDB Data: 0x2A 00 FF FF FF 6A 00 00 20 00 00 00
Sense Area: 0x70 00 06 00 00 00 00 0A 00 00 00 00 29
Buffer x0a4d0080: Len x10000
0x00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

20:21:50 #24 CDR -1114 File Writer.cpp, Line 303
Reset occurred
E: TSSTcorp CD/DVDW TS-H552U

20:21:51 #25 Phase 38 File dlgbrnst.cpp, Line 1762
Burn process failed at 40x (6 000 Ko/s)

20:21:52 #26 Text 0 File SCSIPTICommands.cpp, Line 261
SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME

20:22:16 #27 Text 0 File Cdrdrv.cpp, Line 11185
DriveLocker: UnLockVolume completed

20:22:16 #28 Text 0 File SCSIPTICommands.cpp, Line 424
UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL


Existing drivers:

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

j'espère que quelqu'un pourra m'aider, je vous remercie d'avance.