Gravure impossible avec nero

Bonjour,
Depuis quelque temps je n'arrive plus à graver quoique ce soit sur mon pc portabe Asus
Pouvez-vous me dire si cela vient de mon graveur ou du programme néro ? je vous joins le log édité par néro. Merci d'avance de votre aide.

LOG NERO :



Nom de votre société
1A20-0217-0000-1892-6143-8930*
1A4C-0800-0000-2888-6665-7598

Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0001), size=45056 bytes, created 06/05/2002 11:01:14
ahead WinASPI: File 'C:\Program Files\Ahead\Nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 02/11/2004 12:54:32

NT-SPTI used
Nero Version: 6.6.1.15
Internal Version: 6, 6, 1, 15
(Nero Express)
Recorder: <MATSHITA DVD-RAM UJ-850S>Version: 1.21 - HA 1 TA 0 - 6.6.1.15
Adapter driver: <IDE> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ?
CD-ROM: <MATSHITA DVD-RAM UJ-850S >Version: 1.21 - HA 1 TA 0 - 6.6.1.15
Adapter driver: <IDE> HA 1

=== Scsi-Device-Map ===
DiskPeripheral : ST9120821AS atapi Port 1 ID 0 DMA: On
CdRomPeripheral : MATSHITA DVD-RAM UJ-850S atapi Port 3 ID 0 DMA: On

=== CDRom-Device-Map ===
MATSHITA DVD-RAM UJ-850S E: CDRom0
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 83886080 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 1023MB (1047852kB)
Free physical memory: 439MB (450052kB)
Memory in use : 57 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

12.9.2009
CD-ROM (ISO)
15:15:51 #1 Text 0 File SCSIPTICommands.cpp, Line 403
LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

15:15:51 #2 Text 0 File Isodoc.cpp, Line 6494
Iso document burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : FALSE
Write : TRUE
Finalize CD : TRUE
Multisession : FALSE
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

15:15:51 #3 Text 0 File Burncd.cpp, Line 3014
MATSHITA DVD-RAM UJ-850S
Protection contre les ruptures activés

15:15:51 #4 ISO9660GEN -11 File geniso.cpp, Line 3312
First writeable address = 0 (0x00000000)

15:15:51 #5 Text 0 File Burncd.cpp, Line 3316
Turn on Track-At-Once, using CD-R/RW media

15:15:51 #6 Text 0 File DlgWaitCD.cpp, Line 281
Last possible write address on media: 359848 ( 79:59.73)
Last address to be written: 5332 ( 1:13.07)

15:15:51 #7 Text 0 File DlgWaitCD.cpp, Line 293
Write in overburning mode: NO (enabled: CD)

15:15:51 #8 Text 0 File DlgWaitCD.cpp, Line 2616
Recorder: MATSHITA DVD-RAM UJ-850S;
CDR code: 00 97 22 67; OSJ entry from: Daxon Technology, Inc.
ATIP Data:
Special Info [hex] 1: D0 00 A0, 2: 61 16 43 (LI 97:22.67), 3: 4F 3B 4A (LO 79:59.74)
Additional Info [hex] 1: 00 00 00 (invalid), 2: 00 00 00 (invalid), 3: 00 00 00 (invalid)

15:15:51 #9 Text 0 File DlgWaitCD.cpp, Line 459
>>> Protocol of DlgWaitCD activities: <<<
=========================================

15:15:51 #10 Text 0 File ThreadedTransferInterface.cpp, Line 814
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 5333 (5333) = #5333/1:11.8
relocatable, disc pos for caching/writing not required/ required
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 5331 blocks [MATSHITA DVD-RAM UJ-850S ]
--------------------------------------------------------------

15:15:51 #11 Text 0 File ThreadedTransferInterface.cpp, Line 1013
Prepare recorder [MATSHITA DVD-RAM UJ-850S] for write in TAO
DAO infos:
==========
MCN: ""
TOCType: 0x00; Session Closed, disc fixated
Tracks 1 to 1:
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 307200 11229184, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
-150 | lead-in | 0 | 0x41 | 0x00
-150 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
5333 | lead-out | 1 | 0x41 | 0x00

15:15:51 #12 Text 0 File ThreadedTransferInterface.cpp, Line 1081
Removed 2 run-out blocks from end of track 1. Length: 5333 -> 5331.

15:15:51 #13 Text 0 File SCSIPTICommands.cpp, Line 208
SPTILockVolume - completed successfully for FCTL_LOCK_VOLUME

15:15:51 #14 Phase 24 File dlgbrnst.cpp, Line 1685
Caching of files started

15:15:52 #15 Text 0 File Burncd.cpp, Line 4158
Cache writing successful.

15:15:52 #16 Phase 25 File dlgbrnst.cpp, Line 1685
Caching of files completed

15:15:52 #17 Phase 36 File dlgbrnst.cpp, Line 1685
Burn process started at 24x (3 600 Ko/s)

15:15:52 #18 Text 0 File ThreadedTransferInterface.cpp, Line 2717
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

15:15:52 #19 Text 0 File Mmc.cpp, Line 22143
Set BUFE: Buffer underrun protection -> ON

15:16:00 #20 SPTI -1106 File SCSIPassThrough.cpp, Line 178
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1106)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x73
Sense Qual: 0x03
CDB Data: 0x2A 00 00 00 01 E0 00 00 20 00 00 00
Sense Area: 0xF1 00 03 FF FF FF 6A 0A 00 00 15 12 73 03
Buffer x078e0400: Len x10000
0x0C 33 48 1A 6A F0 B5 4D A4 FD 00 0A 00 BF 05 55
0x2C 97 48 97 6A FC 23 FD 00 0A 00 3D 83 F7 25 5F
0x2C 0A 28 5E 6A BE 00 0A 00 30 07 95 A3 9D 25 1E

15:16:00 #21 CDR -1106 File Writer.cpp, Line 281
Power calibration error
E: MATSHITA DVD-RAM UJ-850S

15:16:00 #22 CDR -201 File WriterStatus.cpp, Line 195
Invalid write state
E: MATSHITA DVD-RAM UJ-850S

15:16:00 #23 TRANSFER -18 File WriterStatus.cpp, Line 195
Could not perform EndTrack

15:16:00 #24 Text 0 File Mmc.cpp, Line 16939
<MATSHITADVD-RAM UJ-850S > start Close Session

15:16:00 #25 SPTI -1106 File SCSIPassThrough.cpp, Line 178
CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1106)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x73
Sense Qual: 0x03
CDB Data: 0x5B 01 02 00 00 00 00 00 00 00 00 00
Sense Area: 0x70 00 03 00 00 00 00 0A 00 00 15 12 73 03

15:16:00 #26 CDR -1106 File WriterStatus.cpp, Line 245
Power calibration error
E: MATSHITA DVD-RAM UJ-850S

15:16:00 #27 TRANSFER -19 File WriterStatus.cpp, Line 245
Could not perform Fixation

15:16:00 #28 Text 0 File WriterStatus.cpp, Line 254
falling back to disc fixation

15:16:00 #29 Phase 38 File dlgbrnst.cpp, Line 1685
Burn process failed at 24x (3 600 Ko/s)

15:16:00 #30 Text 0 File SCSIPTICommands.cpp, Line 253
SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME

15:16:04 #31 Text 0 File Cdrdrv.cpp, Line 9945
DriveLocker: UnLockVolume completed

15:16:04 #32 Text 0 File SCSIPTICommands.cpp, Line 403
UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL


Existing drivers:
File 'Drivers\ASPI32.SYS': Ver=4.71 (0001), size=17005 bytes, created 06/05/2002 11:01:08
File 'Drivers\PXHELP20.SYS': Ver=2.03.28a, size=20640 bytes, created 26/10/2005 21:12:50 (Prassi/Veritas driver for win 2K)

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