BURNING ERROR,SOMEONE EXPLAIN WHY PLEASE?

the last 3 movies ive tried to copy with nero i keep getting an error at %4 sometimes %5,can someone read the log and explain why.

Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0001), size=45056 bytes, created 5/6/2002 12:01:22 PM
ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 10/26/2004 6:35:34 PM
Nero Version: 6.6.0.18
Internal Version: 6, 6, 0, 18e
(Nero Express)
Recorder: <SONY DVD RW DRU-710A> Version: BYX5 - HA 1 TA 0 - 6.6.0.18
Adapter driver: <atapi> HA 1
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: <HL-DT-ST DVD-ROM GDR8160B>Version: 0013 - HA 1 TA 1 - 6.6.0.18
Adapter driver: <atapi> HA 1

=== Scsi-Device-Map ===
DiskPeripheral : Maxtor 4D060H3 atapi Port 0 ID 0 DMA: On
CdRomPeripheral : SONY DVD RW DRU-710A atapi Port 1 ID 0 DMA: On
CdRomPeripheral : HL-DT-ST DVD-ROM GDR8160B atapi Port 1 ID 1 DMA: Off

=== CDRom-Device-Map ===
SONY DVD RW DRU-710A D: CDRom0
HL-DT-ST DVD-ROM GDR8160B E: CDRom1
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 39845888 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 247MB (253408kB)
Free physical memory: 115MB (118512kB)
Memory in use : 53 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

10.12.2005
DVD-Copy on the fly
12:22:00 PM #1 SCSI -1128 File Cdrdrv.cpp, Line 1182
SCSI Exec, HA 1, TA 1, LUN 0, buffer 0x06F60200
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: 0x11
Sense Qual: 0x00
CDB Data: 0x28 0x00 0x00 0x23 0x05 0x20 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0xF0 0x00 0x03 0x00 0x23 0x05 0x20 0x0A
0x00 0x00 0x00 0x00 0x11 0x00

12:22:00 PM #2 Text 0 File DriveFileSystemBlockReader.cpp, Line 235
Error during reading the sector: 2295072

12:22:01 PM #3 Text 0 File Reader.cpp, Line 127
Reader running

12:22:01 PM #4 Text 0 File Writer.cpp, Line 122
Writer SONY DVD RW DRU-710A running

12:22:01 PM #5 Text 0 File DVDCopy.cpp, Line 293
DVD Track-Information from source disc:
Media Type: DVD+R
S01 T01 Con 0x14 Start 0 Len 2295104 (gap 0) Blank 0 Res 0 Dmg 0 Open Trk 0 Mode TRM_DATA_MODE1 (0)

12:22:01 PM #6 Text 0 File DVDCopy.cpp, Line 406
Max -1 tracks of 1 allowed to copy
1: 0 - 2295104 = 2295104, TRM_DATA_MODE1, block size 2048, read opt 0 (no read options)

12:22:01 PM #7 Text 0 File Burncd.cpp, Line 3233
Turn on Disc-At-Once, using DVD media

12:22:01 PM #8 Text 0 File DlgWaitCD.cpp, Line 270
Last possible write address on media: 2298495 (510:46.45, 4489MB)
Last address to be written: 2295103 (510:01.28, 4482MB)

12:22:01 PM #9 Text 0 File DlgWaitCD.cpp, Line 282
Write in overburning mode: NO (enabled: CD)

12:22:01 PM #10 Text 0 File DlgWaitCD.cpp, Line 2483
Recorder: SONY DVD RW DRU-710A, Media type: DVD-R
Disc Manufacturer: UME01 -
Disc Application Code: 64, Disc Physical Code: 193

12:22:01 PM #11 Text 0 File DlgWaitCD.cpp, Line 448
>>> Protocol of DlgWaitCD activities: <<<
=========================================

12:22:01 PM #12 Text 0 File ThreadedTransferInterface.cpp, Line 838
Setup items (after recorder preparation)
0: TRM_DATA_MODE1 (1 - Data (mode 1))
2 indices, index0 (150) not provided
original disc pos #0 + 2295104 (2295104) = #2295104/510:1.29
not relocatable, disc pos for caching/writing not required/not required, no patch infos
-> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 2295104 blocks [SONY DVD RW DRU-710A]
--------------------------------------------------------------

12:22:01 PM #13 Text 0 File ThreadedTransferInterface.cpp, Line 1051
Prepare recorder [SONY DVD RW DRU-710A] for write in CUE-sheet-DAO
DAO infos:
==========
MCN: ""
TOCType: 0x40; Session Closed, disc fixated
Tracks 1 to 1:
1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 4700372992, ISRC ""
DAO layout:
===========
__Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
0 | lead-in | 0 | 0x41 | 0x00
0 | 1 | 0 | 0x41 | 0x00
0 | 1 | 1 | 0x41 | 0x00
2295104 | lead-out | 1 | 0x41 | 0x00

12:22:02 PM #14 Phase 36 File dlgbrnst.cpp, Line 1832
Burn process started at 4x (5,540 KB/s)

12:22:02 PM #15 Text 0 File ThreadedTransferInterface.cpp, Line 2661
Verifying disc position of item 0 (not relocatable, no disc pos, no patch infos, orig at #0): write at #0

12:22:02 PM #16 Text 0 File DVDR.cpp, Line 2571
Recording mode: Sequential Recording Mode

12:22:02 PM #17 Text 0 File Mmc.cpp, Line 21774
Set BUFE: Power-Burn -> ON , Adapt writespeed to disc : ON

12:22:02 PM #18 Text 0 File DVDR.cpp, Line 2726
Start write address at LBA 0
DVD high compatibility mode: Yes

12:22:02 PM #19 Text 0 File Cdrdrv.cpp, Line 8892
---- 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: <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 (LBN: FFFD0000 h, 4193920 MB)
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 ................

12:23:03 PM #20 Text 0 File Cdrdrv.cpp, Line 1288
12:23:03.233 - SONY DVD RW DRU-710A\H1 T0 : Queue again later

12:25:08 PM #21 SCSI -1135 File Cdrdrv.cpp, Line 1436
SCSI Exec, HA 1, TA 0, LUN 0, buffer 0x097C0000
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: 0x00
CDB Data: 0x2A 0x00 0x00 0x01 0x45 0xC0 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0x71 0x00 0x03 0x00 0x00 0x00 0x00 0x0A
0x00 0x00 0x00 0x00 0x0C 0x00

12:25:08 PM #22 CDR -1135 File Writer.cpp, Line 311
Write error

12:25:08 PM #23 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion

12:25:08 PM #24 Text 0 File ThreadedTransfer.cpp, Line 222
conversion idle, stopping reader

12:25:08 PM #25 Text 0 File DVDR.cpp, Line 2969
EndDAO: Last written address was 83391

12:25:17 PM #26 Phase 38 File dlgbrnst.cpp, Line 1832
Burn process failed at 4x (5,540 KB/s)


Existing drivers:
File 'Drivers\PXHELP20.SYS': Ver=2.03.28a, size=20640 bytes, created 3/11/2005 4:28:13 PM (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=5.1.2600.0 (XPClient.010817-1148), size=86656 bytes, created 8/17/2001 2:51:56 PM (Adapter driver for rec)

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