i dont know what all this means but i do know i have a good copy of nero and firmware is updated im thinking it could be in the bios

5c80001080100000000754511058

Windows XP 5.1
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: 7.0.1.4
Internal Version: 7, 0, 1, 4
(Nero Express)
Recorder: Version: RL00 - HA 1 TA 0 - 7.0.1.4
Adapter driver: HA 1
Drive buffer : 2048kB
Bus Type : via Inquiry data (1) -> ATAPI, detected: ?
Connected to MMC as unknown drive with class-nr : 1
Drive is autodetected - recorder class: Std. MMC recorder
CD-ROM: Version: RL00 - HA 1 TA 0 - 7.0.1.4
Adapter driver: HA 1

=== Scsi-Device-Map ===
DiskPeripheral : WDC WD400BB-32DKA0 77.0 viadsk Port 0 ID 0 DMA: Off
CdRomPeripheral : HL-DT-STDVDRAM GSA-H42N RL00 viadsk Port 1 ID 0 DMA: Off

=== CDRom-Device-Map ===
HL-DT-ST DVDRAM GSA-H42N D: CDRom0
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 74448896 (0) Byte
ShowDrvBufStat : 1
BUFE : 0
Physical memory : 511MB (523804kB)
Free physical memory: 31MB (32396kB)
Memory in use : 93 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

11.4.2007
ISO compilation
20:54:04#1 Text 0 File Isodoc.cpp, Line 6411
Iso DOCUMENT burn settings
------------------------------------------
Determine maximum speed : FALSE
Simulate : TRUE
Write : FALSE
Finalize CD : FALSE
Multisession : TRUE
Multisession type: : Start multisession
Burning mode : DAO
Mode : 1
ISO Level : 2 (Max. of 31 chars)
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

20:54:04#2 Text 0 File ThreadedTransfer.cpp, Line 525
ReadBuffer-Pipe got 262144KB of Memory

20:54:04#3 Text 0 File Reader.cpp, Line 124
Reader running

20:54:04#4 Text 0 File Writer.cpp, Line 113
Writer D: HL-DT-ST DVDRAM GSA-H42N running

20:54:04#5 ISO9660GEN -11 File Geniso.cpp, Line 3312
First writeable address = 0 (0x00000000)

20:54:04#6 Text 0 File Burncd.cpp, Line 3342
Turn on Disc-At-Once, using DVD media

20:54:04#7 Text 0 File DlgWaitCD.cpp, Line 279
Last possible write address on media: 2298495 (510:46.45, 4489MB)
Last address to be written: 112447 ( 24:59.22, 219MB)

20:54:04#8 Text 0 File DlgWaitCD.cpp, Line 291
Write in overburning mode: NO (enabled: CD)

20:54:04#9 Text 0 File DlgWaitCD.cpp, Line 2578
Recorder: HL-DT-ST DVDRAM GSA-H42N, Media type: DVD-R
Disc Manufacturer: UME01 -
Disc Application Code: 64, Disc Physical Code: 193

20:54:04#10 Text 0 File DlgWaitCD.cpp, Line 458
>>> Protocol of DlgWaitCD activities: <<<
=========================================

20:54:04#11 Text 0 File ThreadedTransferInterface.cpp, Line 847
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 ()
2 indices, index0 (150) not provided
original disc pos #0 + 112448 (112448) = #112448/24:59.23
relocatable, disc pos for caching/writing not required/ required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 112448 blocks [D: HL-DT-ST DVDRAM GSA-H42N]
--------------------------------------------------------------

20:54:04#12 Text 0 File ThreadedTransferInterface.cpp, Line 1059
Prepare recorder [D: HL-DT-ST DVDRAM GSA-H42N] for write in CUE-sheet-DAO
DAO infos:
==========
MCN: ""
TOCType: 0x00; Session Closed, disc not fixated
Tracks 1 to 1:
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 230293504, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
0 | lead-in | 0 | 0x41 | 0x00
0 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
112448 | lead-out | 1 | 0x41 | 0x00

20:54:04#13 Text 0 File SCSIPassThrough.cpp, Line 36
SPTILockVolume - completed successfully for FCTL_LOCK_VOLUME

20:54:05#14 Phase 24 File dlgbrnst.cpp, Line 1725
Caching of files started

20:54:05#15 Text 0 File Burncd.cpp, Line 4176
Cache writing successful.

20:54:05#16 Phase 25 File dlgbrnst.cpp, Line 1725
Caching of files completed

20:54:05#17 Phase 32 File dlgbrnst.cpp, Line 1725
Simulation started at 8x (11,080 KB/s)

20:55:15#18 Text 0 File ThreadedTransferInterface.cpp, Line 2685
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

20:55:15#19 Text 0 File DVDR.cpp, Line 2580
Recording mode: Sequential Recording Mode for Multisession

20:55:15#20 Text 0 File MMC.cpp, Line 21611
Set BUFE: Buffer underrun protection -> ON

20:55:15#21 Text 0 File DVDR.cpp, Line 2735
Start write address at LBA 0
DVD high compatibility mode: Yes

20:55:15#22 Text 0 File Cdrdrv.cpp, Line 8411
---- DVD Structure: Physical Format Information (00h) ----
Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 0.0 (0)
Disc Size: 120 mm, Maximum Rate: (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: 2FE10 h
Start sector number of the next Border-In: 2FFA0 h
Media Specific [16..63]:
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
00 02 FE 10 00 02 FF A0 - 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................

20:55:27#23 SPTI -31 File SCSIPassThrough.cpp, Line 323
D: CdRom0: SCSIStatus(x00) WinError(87) NeroError(-31)
Sense Key: 0x00 (KEY_NO_SENSE)
Sense Code: 0x00
Sense Qual: 0x00
CDB Data: 0x2A 00 00 00 00 00 00 00 20 00 00 00
Sense Area: 0x00 00 00 00 00 00 00 00 00 00 00 00 00
Buffer x05590000: 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

20:55:27#24 SPTI -31 File SCSIPassThrough.cpp, Line 323
D: CdRom0: SCSIStatus(x00) WinError(87) NeroError(-31)
Sense Key: 0x00 (KEY_NO_SENSE)
Sense Code: 0x00
Sense Qual: 0x00
CDB Data: 0x2A 00 00 00 00 00 00 00 20 00 00 00
Sense Area: 0x00 00 00 00 00 00 00 00 00 00 00 00 00
Buffer x0459e000: 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

20:55:27#25 Text 0 File MMC.cpp, Line 19278
Writer-Buffer for D: HL-DT-ST DVDRAM GSA-H42N reduced to 32768Bytes

20:55:27#26 SPTI -31 File SCSIPassThrough.cpp, Line 323
D: CdRom0: SCSIStatus(x00) WinError(87) NeroError(-31)
Sense Key: 0x00 (KEY_NO_SENSE)
Sense Code: 0x00
Sense Qual: 0x00
CDB Data: 0x2A 00 00 00 00 00 00 00 10 00 00 00
Sense Area: 0x00 00 00 00 00 00 00 00 00 00 00 00 00
Buffer x0453ba00: Len x8000
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

20:55:27#27 CDR -31 File Writer.cpp, Line 302
Buffer too large
D: HL-DT-ST DVDRAM GSA-H42N

20:55:27#28 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion

20:55:27#29 Text 0 File DVDR.cpp, Line 2978
EndDAO: Last written address was -1

20:55:27#30 Phase 133 File dlgbrnst.cpp, Line 1725
Writing short lead-out

20:55:27#31 Phase 34 File dlgbrnst.cpp, Line 1725
Simulation failed at 8x (11,080 KB/s)


Existing drivers:

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

The first step is to uninstall and reinstall the software after a reboot.

If that doesn't fix it, try the component in another machine to isolate where the problem REALLY is.