Whenever i use nero to burn dvd data discs. i get an error saying it failed.
below is the log file of the nero program:

€;
€;
1A23-7090-8020-5836-3751-1613

Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.60 (1021), size=45056 bytes, created 9/10/1999 12:06:00 PM
ahead WinASPI: File 'C:\Program Files\Ahead\Nero\Wnaspi32.dll': Ver=2.0.1.59, size=160016 bytes, created 6/17/2003 2:25:04 PM
Nero version: 6.0.0.23 (Nero Express)
Recorder: <PIONEER DVD-RW DVR-106RD>Version: 1.05 - HA 4 TA 0 - 6.0.0.23
Adapter driver: <atapi> HA 4
Drive buffer : 2000kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: <Generic STEALTH DVD >Version: - HA 6 TA 0 - 6.0.0.23
Adapter driver: <st3wolf> HA 6

=== Scsi-Device-Map ===
DiskPeripheral : SiI ATA Striped Set Pnp680r Port 0 ID 0 DMA: Off
DiskPeripheral : WDC WD1200PB-00FBA0 atapi Port 1 ID 0 DMA: On
DiskPeripheral : WDC WD1200JD-00GBB0 atapi Port 2 ID 0 DMA: On
CdRomPeripheral : PIONEER DVD-RW DVR-106RD atapi Port 4 ID 0 DMA: On
CdRomPeripheral : SONY CD-RW CRX195E1 atapi Port 4 ID 1 DMA: On
CdRomPeripheral : Generic STEALTH DVD st3wolf Port 6 ID 0 DMA: Off

=== CDRom-Device-Map ===
PIONEER DVD-RW DVR-106RD D: CDRom0
SONY CD-RW CRX195E1 E: CDRom1
Generic STEALTH DVD G: CDRom2
=======================

AutoRun : 1
Excluded drive IDs:
CmdQueuing : 1
CmdNotification: 2
WriteBufferSize: 83886080 (0) Byte
ShowDrvBufStat : 0
EraseSpeed : 0
BUFE : 0
Physical memory : 1022MB (1047276kB)
Free physical memory: 539MB (552664kB)
Memory in use : 47 %
Uncached PFiles: 0x0
Use Static Write Speed Table: 0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

29.2.2004
ISO compilation
9:52:26 PM #1 Text 0 File Isodoc.cpp, Line 6013
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 : 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

9:52:26 PM #2 Text 0 File Reader.cpp, Line 118
Reader running

9:52:26 PM #3 Text 0 File Writer.cpp, Line 124
Writer PIONEER DVD-RW DVR-106RD running

9:52:26 PM #4 ISO9660GEN -11 File geniso.cpp, Line 3882
First writeable address = 0 (0x00000000)

9:52:26 PM #5 Text 0 File Burncd.cpp, Line 3218
Turn on Disc-at-once, using DVD media

9:52:26 PM #6 Text 0 File DlgWaitCD.cpp, Line 233
Last possible write address on media: 2298495 (510:46.45)
Last address to be written: 1350261 (300:03.36)

9:52:26 PM #7 Text 0 File DlgWaitCD.cpp, Line 238
Write in overburning mode: FALSE

9:52:26 PM #8 Text 0 File DlgWaitCD.cpp, Line 1997
Recorder: PIONEER DVD-RW DVR-106RD, Media type: DVD-R
Disc Manufacturer: LONGTE - N 001
Disc Application Code: 64, Disc Physical Code: 193

9:52:26 PM #9 Text 0 File DlgWaitCD.cpp, Line 398
>>> Protocol of DlgWaitCD activities: <<<
=========================================

9:52:26 PM #10 Text 0 File ThreadedTransferInterface.cpp, Line 773
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 (CTransferItem)
2 indices, index0 (150) not provided
original disc pos #0 + 1350112 (1350112) = #1350112/300:1.37
relocatable, disc pos for caching/writing not required/required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 1350112 blocks [PIONEER DVD-RW DVR-106RD]
--------------------------------------------------------------

9:52:26 PM #11 Text 0 File ThreadedTransferInterface.cpp, Line 942
Prepare recorder [PIONEER DVD-RW DVR-106RD] 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 2765029376, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_RecDep_|_CtrlAdr_
0 | lead-in | 0 | 0x00 | 0x41
0 | 1 | 0 | 0x00 | 0x41
0 | 1 | 1 | 0x00 | 0x41
1350112 | lead-out | 1 | 0x00 | 0x41

9:52:26 PM #12 Phase 24 File dlgbrnst.cpp, Line 1803
Caching of files started

9:52:27 PM #13 Phase 25 File dlgbrnst.cpp, Line 1803
Caching of files completed

9:52:27 PM #14 Phase 36 File dlgbrnst.cpp, Line 1803
Burn process started at 4x (5,520 KB/s)

9:52:27 PM #15 Text 0 File ThreadedTransferInterface.cpp, Line 2146
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

9:52:27 PM #16 Text 0 File dlgbrnst.cpp, Line 1661
Set remaining time: 8:32,367 (512367ms) -> OK

9:52:27 PM #17 Text 0 File DVDR.cpp, Line 1247
Recording mode: Sequential Recording Mode

9:52:27 PM #18 Text 0 File Mmc.cpp, Line 19359
Set BUFE: supported -> ON

9:52:27 PM #19 Text 0 File DVDR.cpp, Line 1362
Start write address at LBA 0
DVD high compatibility mode: Yes

9:52:27 PM #20 Text 0 File Cdrdrv.cpp, Line 7883
---- 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: 10.08 Mbps (2 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
Media Specific:
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 ................

9:52:29 PM #21 Text 0 File Cdrdrv.cpp, Line 1273
21:52:29.125 - PIONEER DVD-RW DVR-106RD\H4 T0 : Queue again later

9:53:09 PM #22 SCSI -1106 File Cdrdrv.cpp, Line 1427
SCSI Exec, HA 4, TA 0, LUN 0, buffer 0x04310000
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: 0x73
Sense Qual: 0x03
CDB Data: 0x2A 0x00 0x00 0x00 0x03 0x00 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0x71 0x00 0x03 0x00 0x00 0x00 0x00 0x0E
0x00 0x00 0x00 0x00 0x73 0x03

9:53:09 PM #23 CDR -1106 File Writer.cpp, Line 301
Power calibration error

9:53:09 PM #24 Text 0 File ThreadedTransfer.cpp, Line 229
all writers idle, stopping conversion

9:53:09 PM #25 Text 0 File ThreadedTransfer.cpp, Line 223
conversion idle, stopping reader

9:53:10 PM #26 Text 0 File DVDR.cpp, Line 1565
EndDAO: Last written address was 767

9:53:10 PM #27 Text 0 File dlgbrnst.cpp, Line 1661
Set remaining time: 0:00,000 (0ms) -> OK

9:53:10 PM #28 Text 0 File dlgbrnst.cpp, Line 1661
Set remaining time: 0:00,000 (0ms) -> OK

9:53:10 PM #29 Phase 38 File dlgbrnst.cpp, Line 1803
Burn process failed at 4x (5,520 KB/s)


Existing drivers:
File 'Drivers\ASPI32.SYS': Ver=4.60 (1021), size=25244 bytes, created 9/10/1999 12:06:00 PM
File 'Drivers\PXHELP20.SYS': Ver=2.02.60a, size=17232 bytes, created 8/27/2003 2:02:00 AM (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=5.1.2600.1106 (xpsp1.020828-1920), size=86912 bytes, created 8/29/2002 4:27:50 PM (Adapter driver for rec)
File 'Drivers\st3wolf.sys': Ver=3.33.0.0, size=99360 bytes, created 4/27/2003 11:43:06 AM (Adapter driver for src)

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

sorry for the long log file.
any help or attempts to help is greatly appreciated