Unspecified target error. Please Help!

Hello everyone!
I've had some problems burning lately. If anyone could give me any ideas on how to fix the problem that would be great.
Here is my Nero Log:

Larissa
Laroo
1A2308099130241470217820

Windows XP 5.1
IA32
WinAspi: -
ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 10/27/2004 2:35:34 AM
Nero Version: 6.6.0.14
Internal Version: 6, 6, 0, 14d
(Nero Express)
Recorder: Version: 1.40 - HA 1 TA 0 - 6.6.0.14
Adapter driver: HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: Version: 1.40 - HA 1 TA 0 - 6.6.0.14
Adapter driver: HA 1

=== Scsi-Device-Map ===
DiskPeripheral : TOSHIBA MK1031GAS atapi Port 0 ID 0 DMA: On
CdRomPeripheral : MATSHITA DVD-RAM UJ-831S atapi Port 1 ID 0 DMA: On

=== CDRom-Device-Map ===
MATSHITA DVD-RAM UJ-831S D: CDRom0
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 73400320 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 503MB (515500kB)
Free physical memory: 219MB (224912kB)
Memory in use : 56 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

19.2.2006
ISO compilation
11:56:57 AM #1 Text 0 File Isodoc.cpp, Line 6314
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 : TRUE
Allow pathdepth more than 8 directories : TRUE
Allow more than 255 characters in path : TRUE
Write ISO9660 ;1 file extensions : TRUE

11:56:57 AM #2 Text 0 File Reader.cpp, Line 127
Reader running

11:56:57 AM #3 Text 0 File Writer.cpp, Line 122
Writer MATSHITA DVD-RAM UJ-831S running

11:56:57 AM #4 ISO9660GEN -11 File geniso.cpp, Line 3297
First writeable address = 0 (0x00000000)

11:56:57 AM #5 Text 0 File Burncd.cpp, Line 3230
Turn on Disc-At-Once, using DVD media

11:56:57 AM #6 Text 0 File DlgWaitCD.cpp, Line 267
Last possible write address on media: 2295103 (510:01.28, 4482MB)
Last address to be written: 1841279 (409:10.29, 3596MB)

11:56:57 AM #7 Text 0 File DlgWaitCD.cpp, Line 279
Write in overburning mode: NO (enabled: CD)

11:56:57 AM #8 Text 0 File DlgWaitCD.cpp, Line 2433
Recorder: MATSHITA DVD-RAM UJ-831S, Media type: DVD+R
Disc Manufacturer ID: RICOHJPN, Media Type ID: R03, Product revision number: 4
Disc Application Code: 0, Extended Information Indicators: 7

11:56:57 AM #9 Text 0 File DlgWaitCD.cpp, Line 445
>>> Protocol of DlgWaitCD activities: <<<
=========================================

11:56:57 AM #10 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 + 1841280 (1841280) = #1841280/409:10.30
relocatable, disc pos for caching/writing not required/ required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 1841280 blocks [MATSHITA DVD-RAM UJ-831S]
--------------------------------------------------------------

11:56:57 AM #11 Text 0 File ThreadedTransferInterface.cpp, Line 1043
Prepare recorder [MATSHITA DVD-RAM UJ-831S] 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 3770941440, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
0 | lead-in | 0 | 0x41 | 0x00
0 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
1841280 | lead-out | 1 | 0x41 | 0x00

11:56:57 AM #12 Phase 24 File dlgbrnst.cpp, Line 1832
Caching of files started

11:56:57 AM #13 Text 0 File Burncd.cpp, Line 4114
Cache writing successful.

11:56:57 AM #14 Phase 25 File dlgbrnst.cpp, Line 1832
Caching of files completed

11:56:57 AM #15 Phase 36 File dlgbrnst.cpp, Line 1832
Burn process started at 2.4x (3,324 KB/s)

11:56:57 AM #16 Text 0 File ThreadedTransferInterface.cpp, Line 2643
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0

11:56:57 AM #17 Text 0 File Cdrdrv.cpp, Line 8821
---- DVD Structure: Physical Format Information (00h) ----
Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD+R (10), Part Version: 1
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: 26053F h
End Sector Number in Layer 0: 0 h (LBN: FFFD0000 h, 4193920 MB)
Data in Burst Cutting Area (BCA) does not exist
Disc Application Code: 0 / 0 h
Extended Information indicators: 7 h
Disc Manufacturer ID: RICOHJPN
Media type ID: R03
Product revision number: 4
Number of Physical format information bytes in use in ADIP up to byte 63: 56
Media Specific [16..63]:
00 00 07 52 49 43 4F 48 - 4A 50 4E 52 30 33 04 38 ...RICOHJPNR03.8
23 54 37 13 00 44 73 00 - 84 6D 15 15 0B 0B 08 08 #T7..Ds..m......
01 19 1B 0C 0C 0C 0D 01 - 00 00 00 00 00 00 00 00 ................

11:56:57 AM #18 Text 0 File DVDPlusRW.cpp, Line 655
Start write address at LBA 0
DVD high compatibility mode: Yes

11:57:32 AM #19 SCSI -400 File Cdrdrv.cpp, Line 1436
SCSI Exec, HA 1, TA 0, LUN 0, buffer 0x06B90000
Status: 0x04 (0x01, SCSI_ERR)
HA-Status 0x00 (0x00, OK)
TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND)
Sense Key: 0x04 (KEY_HARDWARE_ERROR)
Sense Code: 0x03
Sense Qual: 0x00
CDB Data: 0x2A 0x00 0x00 0x00 0x05 0xE0 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0xF1 0x00 0x04 0x00 0x00 0x02 0xF0 0x0A
0x00 0x29 0x00 0x00 0x03 0x00

11:57:32 AM #20 CDR -400 File Writer.cpp, Line 311
Unspecified target error

11:57:32 AM #21 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion

11:57:32 AM #22 Text 0 File ThreadedTransfer.cpp, Line 222
conversion idle, stopping reader

11:57:39 AM #23 SCSI -1046 File Cdrdrv.cpp, Line 1182
SCSI Exec, HA 1, TA 0, LUN 0
Status: 0x04 (0x01, SCSI_ERR)
HA-Status 0x00 (0x00, OK)
TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND)
Sense Key: 0x05 (KEY_ILLEGAL_REQUEST)
Sense Code: 0x30
Sense Qual: 0x05
CDB Data: 0x5B 0x01 0x05 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Sense Data: 0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0A
0x00 0x82 0x00 0x00 0x30 0x05

11:57:39 AM #24 Phase 127 File dlgbrnst.cpp, Line 1832
Generating DVD high compatibility borders

11:57:39 AM #25 Phase 129 File dlgbrnst.cpp, Line 1832
Generating DVD borders completed successfully

11:57:39 AM #26 Phase 38 File dlgbrnst.cpp, Line 1832
Burn process failed at 2.4x (3,324 KB/s)


Existing drivers:
File 'Drivers\PXHELP20.SYS': Ver=2.03.18a, size=20576 bytes, created 7/11/2005 6:32:52 AM (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=5.1.2600.2180 (xpsp_sp2_rtm.040803-2158), size=95360 bytes, created 8/4/2004 7:59:44 AM (Adapter driver for rec)

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

***********************

I have also had this error from Sonic MyDVD when attempting to burn home dvds. "Could not complete the last command because: Device Error- Sense Code (5 30 05) Cannot write medium- Incompatible format Write (OSerr339973)."

Thanks in advance for your help.
Nicelala