My DVD writer has suddenly started failing on every burn.
I have tried a variety of media, with the same result every time. All of these are from packs of disc where I have had no problem in the past, so it would be a HUGE coincidence if this is a media issue. 
Any advice gratefully rec'd
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Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 17/07/2002 09:03:20
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: 6.6.0.3
Recorder: <SONY DVD RW DW-U12A> Version: 2.0e - HA 1 TA 0 - 6.6.0.3
Adapter driver: <atapi> HA 1
Drive buffer : 8192kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: <PIONEER DVD-ROM DVD-120R>Version: 1.20 - HA 1 TA 1 - 6.6.0.3
Adapter driver: <atapi> HA 1
=== Scsi-Device-Map ===
DiskPeripheral : WDC WD1600BB-22DAA0 atapi Port 0 ID 0 DMA: On
CdRomPeripheral : SONY DVD RW DW-U12A atapi Port 1 ID 0 DMA: On
CdRomPeripheral : PIONEER DVD-ROM DVD-120R atapi Port 1 ID 1 DMA: On
=== CDRom-Device-Map ===
SONY DVD RW DW-U12A F: CDRom0
PIONEER DVD-ROM DVD-120R G: CDRom1
=======================
AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 74448896 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 511MB (523804kB)
Free physical memory: 184MB (189384kB)
Memory in use : 63 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)
19.12.2004
UDF/ISO compilation
01:41:42 #1 Phase 112 File dlgbrnst.cpp, Line 1832
DVD-Video files reallocation started
01:41:42 #2 Phase 114 File dlgbrnst.cpp, Line 1832
DVD-Video files reallocation completed (no file modified)
01:41:42 #3 Text 0 File Isodoc.cpp, Line 6168
Iso document burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : FALSE
Write : TRUE
Finalize CD : TRUE
Multisession : FALSE
Burning mode : DAO
Mode : 1
ISO Level : 1 (Max. of 11 = 8 + 3 char)
Character set : ISO 9660
Joliet :FALSE
Allow pathdepth more than 8 directories : TRUE
Allow more than 255 characters in path : TRUE
Write ISO9660 ;1 file extensions : TRUE
01:41:42 #4 Phase 111 File dlgbrnst.cpp, Line 1832
DVD-Video files sorted
01:41:42 #5 Text 0 File Reader.cpp, Line 127
Reader running
01:41:42 #6 Text 0 File Writer.cpp, Line 122
Writer SONY DVD RW DW-U12A running
01:41:42 #7 ISO9660GEN -11 File geniso.cpp, Line 3286
First writeable address = 0 (0x00000000)
01:41:42 #8 ISO9660GEN -11 File geniso.cpp, Line 3286
First writeable address = 0 (0x00000000)
01:41:42 #9 Text 0 File Burncd.cpp, Line 3151
Turn on Disc-at-once, using DVD media
01:41:43 #10 Text 0 File DlgWaitCD.cpp, Line 256
Last possible write address on media: 2298495 (510:46.45, 4489MB)
Last address to be written: 883481 (196:19.56, 1725MB)
01:41:43 #11 Text 0 File DlgWaitCD.cpp, Line 268
Write in overburning mode: NO (enabled: CD)
01:41:43 #12 Text 0 File DlgWaitCD.cpp, Line 2309
Recorder: SONY DVD RW DW-U12A, Media type: DVD-R
Disc Manufacturer: MCC 00 - RG200
Disc Application Code: 64, Disc Physical Code: 193
01:41:43 #13 Text 0 File DlgWaitCD.cpp, Line 430
>>> Protocol of DlgWaitCD activities: <<<
=========================================
01:41:43 #14 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 + 883632 (883632) = #883632/196:21.57
relocatable, disc pos for caching/writing not required/ required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 883632 blocks [SONY DVD RW DW-U12A]
--------------------------------------------------------------
01:41:43 #15 Text 0 File ThreadedTransferInterface.cpp, Line 1040
Prepare recorder [SONY DVD RW DW-U12A] 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 0 1809678336, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
0 | lead-in | 0 | 0x41 | 0x00
0 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
883632 | lead-out | 1 | 0x41 | 0x00
01:41:43 #16 Phase 24 File dlgbrnst.cpp, Line 1832
Caching of files started
01:41:43 #17 Text 0 File Burncd.cpp, Line 4038
Cache writing successful.
01:41:43 #18 Phase 25 File dlgbrnst.cpp, Line 1832
Caching of files completed
01:41:43 #19 Phase 36 File dlgbrnst.cpp, Line 1832
Burn process started at 2x (2,770 KB/s)
01:41:44 #20 Text 0 File ThreadedTransferInterface.cpp, Line 2596
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0
01:41:44 #21 Text 0 File DVDR.cpp, Line 2248
Recording mode: Sequential Recording Mode
01:41:44 #22 Text 0 File Mmc.cpp, Line 21025
Set BUFE: Power-Burn -> ON
01:41:44 #23 Text 0 File DVDR.cpp, Line 2389
Start write address at LBA 0
DVD high compatibility mode: Yes
01:41:44 #24 Text 0 File Cdrdrv.cpp, Line 8315
---- 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
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 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 ................
01:41:46 #25 Text 0 File Cdrdrv.cpp, Line 1282
01:41:46.578 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:41 #26 Text 0 File Cdrdrv.cpp, Line 1282
01:42:41.312 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:41 #27 Text 0 File Cdrdrv.cpp, Line 1282
01:42:41.921 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:41 #28 Text 0 File Cdrdrv.cpp, Line 1282
01:42:41.984 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:42 #29 Text 0 File Cdrdrv.cpp, Line 1282
01:42:42.031 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:42 #30 Text 0 File Cdrdrv.cpp, Line 1282
01:42:42.078 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:42 #31 Text 0 File Cdrdrv.cpp, Line 1282
01:42:42.125 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:42 #32 Text 0 File Cdrdrv.cpp, Line 1282
01:42:42.171 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:42:42 #33 Text 0 File Cdrdrv.cpp, Line 1282
01:42:42.218 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:43:29 #34 Text 0 File Cdrdrv.cpp, Line 1282
01:43:29.078 - SONY DVD RW DW-U12A\H1 T0 : Queue again later
01:44:21 #35 SCSI -1135 File Cdrdrv.cpp, Line 1430
SCSI Exec, HA 1, TA 0, LUN 0, buffer 0x03D80000
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: 0x08
CDB Data: 0x2A 0x00 0x00 0x01 0x02 0x60 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0xF1 0x00 0x03 0x00 0x00 0xF9 0x90 0x12
0x00 0x00 0x00 0x00 0x0C 0x08
01:44:21 #36 CDR -1135 File Writer.cpp, Line 311
Write error
01:44:21 #37 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion
01:44:22 #38 Text 0 File ThreadedTransfer.cpp, Line 222
conversion idle, stopping reader
01:44:22 #39 Text 0 File DVDR.cpp, Line 2632
EndDAO: Last written address was 66143
01:44:22 #40 Phase 38 File dlgbrnst.cpp, Line 1832
Burn process failed at 2x (2,770 KB/s)
Existing drivers:
File 'Drivers\ASPI32.SYS': Ver=4.71 (0002) built by: WinDDK, size=16512 bytes, created 17/07/2002 08:05:10
File 'Drivers\PXHELP20.SYS': Ver=2.02.60a, size=17232 bytes, created 27/08/2003 02:02:00 (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=5.1.2600.1135 (xpsp2.020921-0842), size=87040 bytes, created 24/10/2002 23:59:48 (Adapter driver for rec)
Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)