ok having a hell of a time with this, trying to burn a AVI I made ages ago (all working) onto a DVD with nero vision, worked before (3 weeks+) but its stopped working now! it encodes the DVD fine but then gets to the wrighting part and fails after about 20 seconds 
heres the burn log (I think this is the important bit)
please help me! need to burn this for a display tomorrow!

heres the burn log (I think this is the important bit)
Code:
[20:15:13] DVDEngine BEGIN: VTSTT_VOBS#1 - Write
[20:15:13] DVDEngine ...RBP=0, count=1,073,739,776 bytes
[20:17:09] NeroVision Write error
[20:17:09] NeroVision E: SONY DVD RW AW-G170A
[20:17:12] DVDEngine ...succeeded
[20:17:12] DVDEngine END: VTSTT_VOBS#1 - Write
[20:17:12] NeroVision Burn process failed at 18x (24,930 KB/s)
[20:17:17] NeroVision Process information:
[Files named here .dlls etc]
[20:17:17] NeroVision Book type: 'Automatic'
[20:17:17] NeroVision 1K22-2867-0K95-61K4-5000-CKAC-****
[20:17:17] NeroVision Windows XP 5.1
[20:17:17] NeroVision IA32
[20:17:17] NeroVision WinAspi: -
[20:17:17] NeroVision NT-SPTI used
[20:17:17] NeroVision Nero API version: 8.0.3.0
[20:17:17] NeroVision Using interface version: 8.0.0.0
[20:17:17] NeroVision Installed in: C:\Program Files\Nero\Nero8\Nero Burning Rom\
[20:17:17] NeroVision Application: Nero\NeroVision
[20:17:17] NeroVision Internal Version: 8, 0, 3, 0
[20:17:17] NeroVision Recorder: <SONY DVD RW AW-G170A> Version: 1.71 - HA 1 TA 0 - 8.0.3.0
[20:17:17] NeroVision Adapter driver: <IDE> HA 1
[20:17:17] NeroVision Drive buffer : 2048kB
[20:17:17] NeroVision Bus Type : default
[20:17:17] NeroVision === Scsi-Device-Map ===
[20:17:17] NeroVision DiskPeripheral : ST3250620AS atapi Port 0 ID 0 DMA: On
[20:17:17] NeroVision DiskPeripheral : ST3120026AS atapi Port 0 ID 1 DMA: On
[20:17:17] NeroVision CdRomPeripheral : SONY DVD RW AW-G170A 1.71 JRAID Port 4 ID 0 DMA: Off
[20:17:17] NeroVision CdRomPeripheral : MagicISOVirtual DVD-ROM 1.0A mcdbus Port 5 ID 0 DMA: Off
[20:17:17] NeroVision CdRomPeripheral : SCSIVAX DVD/CD-ROM 2.7a a0o7wxfr Port 6 ID 0 DMA: Off
[20:17:17] NeroVision === CDRom-Device-Map ===
[20:17:17] NeroVision SONY DVD RW AW-G170A E: CdRom0
[20:17:17] NeroVision SCSIVAX DVD/CD-ROM F: CdRom1
[20:17:17] NeroVision MagicISO Virtual DVD-ROM G: CdRom2
[20:17:17] NeroVision =======================
[20:17:17] NeroVision AutoRun : 0
[20:17:17] NeroVision Excluded drive IDs:
[20:17:17] NeroVision WriteBufferSize: 83886080 (0) Byte
[20:17:17] NeroVision BUFE : 0
[20:17:17] NeroVision Physical memory : 1023MB (1048044kB)
[20:17:17] NeroVision Free physical memory: 301MB (308720kB)
[20:17:17] NeroVision Memory in use : 70 %
[20:17:17] NeroVision Uncached PFiles: 0x0
[20:17:17] NeroVision Use Inquiry : 1
[20:17:17] NeroVision Global Bus Type: default (0)
[20:17:17] NeroVision Check supported media : Disabled (0)
[20:17:17] NeroVision 14.10.2007
[20:17:17] NeroVision NeroAPI
[20:17:17] NeroVision 20:15:13 #1 Phase 111 File APIProgress.cpp, Line 285
[20:17:17] NeroVision DVD-Video files sorted
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #2 Text 0 File SCSIPTICommands.cpp, Line 424
[20:17:17] NeroVision LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #3 ISO9660GEN -11 File Geniso.cpp, Line 3345
[20:17:17] NeroVision First writeable address = 0 (0x00000000)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #4 ISO9660GEN -11 File Geniso.cpp, Line 3345
[20:17:17] NeroVision First writeable address = 0 (0x00000000)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #5 Text 0 File Burncd.cpp, Line 3520
[20:17:17] NeroVision Turn on Disc-At-Once, using DVD media
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #6 Text 0 File DlgWaitCD.cpp, Line 307
[20:17:17] NeroVision Last possible write address on media: 2298495 (510:46.45, 4489MB)
[20:17:17] NeroVision Last address to be written: 2251007 (500:13.32, 4396MB)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #7 Text 0 File DlgWaitCD.cpp, Line 319
[20:17:17] NeroVision Write in overburning mode: NO (enabled: CD)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #8 Text 0 File DlgWaitCD.cpp, Line 2972
[20:17:17] NeroVision Recorder: SONY DVD RW AW-G170A, Media type: DVD-R
[20:17:17] NeroVision Disc Manufacturer: MCC 03 - RG20
[20:17:17] NeroVision Disc Application Code: 64, Disc Physical Code: 193
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #9 Text 0 File DlgWaitCD.cpp, Line 493
[20:17:17] NeroVision >>> Protocol of DlgWaitCD activities: <<<
[20:17:17] NeroVision =========================================
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #10 Text 0 File ThreadedTransferInterface.cpp, Line 795
[20:17:17] NeroVision Setup items (after recorder preparation)
[20:17:17] NeroVision 0: TRM_DATA_MODE1 ()
[20:17:17] NeroVision 2 indices, index0 (150) not provided
[20:17:17] NeroVision original disc pos #0 + 2251008 (2251008) = #2251008/500:13.33
[20:17:17] NeroVision relocatable, disc pos for caching/writing not required/ required
[20:17:17] NeroVision -> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 2251008 blocks [E: SONY DVD RW AW-G170A]
[20:17:17] NeroVision --------------------------------------------------------------
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #11 Text 0 File ThreadedTransferInterface.cpp, Line 997
[20:17:17] NeroVision Prepare [E: SONY DVD RW AW-G170A] for write in CUE-sheet-DAO
[20:17:17] NeroVision DAO infos:
[20:17:17] NeroVision ==========
[20:17:17] NeroVision MCN: ""
[20:17:17] NeroVision TOCType: 0x00; Session Closed, disc fixated
[20:17:17] NeroVision Tracks 1 to 1: Idx 0 Idx 1 Next Trk
[20:17:17] NeroVision 1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 4610064384, ISRC ""
[20:17:17] NeroVision DAO layout:
[20:17:17] NeroVision ===========
[20:17:17] NeroVision ___Start_|____Track_|_Idx_|_CtrlAdr_|_____Size_|______NWA_|_RecDep__________
[20:17:17] NeroVision 0 | lead-in | 0 | 0x41 | 0 | 0 | 0x00
[20:17:17] NeroVision 0 | 1 | 0 | 0x41 | 0 | 0 | 0x00
[20:17:17] NeroVision 0 | 1 | 1 | 0x41 | 2251008 | 0 | 0x00
[20:17:17] NeroVision 2251008 | lead-out | 1 | 0x41 | 0 | 0 | 0x00
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #12 Text 0 File SCSIPTICommands.cpp, Line 215
[20:17:17] NeroVision SPTILockVolume - completed successfully for FSCTL_LOCK_VOLUME
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #13 Text 0 File Burncd.cpp, Line 4306
[20:17:17] NeroVision Caching options: cache CDRom or Network-No, small files-Yes (<32KB)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #14 Phase 24 File APIProgress.cpp, Line 285
[20:17:17] NeroVision Caching of files started
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #15 Text 0 File Burncd.cpp, Line 4425
[20:17:17] NeroVision Cache writing successful.
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #16 Phase 25 File APIProgress.cpp, Line 285
[20:17:17] NeroVision Caching of files completed
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #17 Phase 36 File APIProgress.cpp, Line 285
[20:17:17] NeroVision Burn process started at 18x (24,930 KB/s)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #18 Text 0 File ThreadedTransferInterface.cpp, Line 2723
[20:17:17] NeroVision Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #19 Text 0 File DVDR.cpp, Line 3227
[20:17:17] NeroVision Recording mode: Sequential Recording Mode
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #20 Text 0 File DVDR.cpp, Line 3383
[20:17:17] NeroVision Start write address at LBA 0
[20:17:17] NeroVision DVD high compatibility mode: Yes
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #21 Text 0 File Cdrdrv.cpp, Line 9918
[20:17:17] NeroVision ---- Disc Structure: Physical Format Information (00h) ----
[20:17:17] NeroVision Media Type: 0, Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
[20:17:17] NeroVision Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 2.1 (33)
[20:17:17] NeroVision Disc Size: 120 mm, Maximum Rate: <not specified> (F h)
[20:17:17] NeroVision Number of Layers: 1, Track Path: Parallel Track Path (PTP), Layer Type: recordable
[20:17:17] NeroVision Linear Density: 0,267 um/bit, Track Density: 0,74 um/track
[20:17:17] NeroVision Starting Physical Sector Number of Data Area: 30000 h (DVD-ROM, DVD-R/-RW, DVD+R/+RW)
[20:17:17] NeroVision End Sector Number in Layer 0: 0 h (LBN: FFFD0000 h, 4193920 MB)
[20:17:17] NeroVision Data in Burst Cutting Area (BCA) does not exist
[20:17:17] NeroVision Revision number of maximum recording speed: 6.0
[20:17:17] NeroVision Revision number of minimum recording speed: -
[20:17:17] NeroVision Revision number table of recording speed: 1.0 2.0 3.0 4.0 5.0 - -
[20:17:17] NeroVision Class: 0
[20:17:17] NeroVision Start sector number of the current Border-Out: 2FE10 h
[20:17:17] NeroVision Start sector number of the next Border-In: 2FFA0 h
[20:17:17] NeroVision Media Specific [16..63]:
[20:17:17] NeroVision 00 60 00 10 20 30 40 50 - 00 00 00 21 00 00 00 00 .`...0@P...!....
[20:17:17] NeroVision 00 02 FE 10 00 02 FF A0 - 00 00 00 00 00 00 00 00 ..¦... .........
[20:17:17] NeroVision 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:13 #22 Text 0 File ThreadedTransfer.cpp, Line 269
[20:17:17] NeroVision Pipe memory size 83836800
[20:17:17] NeroVision
[20:17:17] NeroVision 20:15:15 #23 Text 0 File Cdrdrv.cpp, Line 1342
[20:17:17] NeroVision 20:15:15.093 - ?????/?????A : Queue again later
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:09 #24 SPTI -1135 File SCSIPassThrough.cpp, Line 181
[20:17:17] NeroVision CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1135)
[20:17:17] NeroVision Sense Key: 0x03 (KEY_MEDIUM_ERROR)
[20:17:17] NeroVision Sense Code: 0x0C
[20:17:17] NeroVision Sense Qual: 0x00
[20:17:17] NeroVision CDB Data: 0x2A 00 00 06 00 40 00 00 20 00 00 00
[20:17:17] NeroVision Sense Area: 0x70 00 03 00 00 00 00 0A 00 00 00 00 0C
[20:17:17] NeroVision Buffer x3118c540: Len x10000
[20:17:17] NeroVision 0x00 00 01 BA 44 5D DD 55 1D E1 01 89 C3 F8 00 00
[20:17:17] NeroVision 0x01 E0 07 EC 80 00 00 4D 88 A7 73 76 F4 F0 5E D1
[20:17:17] NeroVision 0x7A A9 A0 C3 E9 CB B3 2E F7 55 34 26 12 F2 AF 33
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:09 #25 CDR -1135 File Writer.cpp, Line 312
[20:17:17] NeroVision Write error
[20:17:17] NeroVision E: SONY DVD RW AW-G170A
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:12 #26 Text 0 File DVDR.cpp, Line 3785
[20:17:17] NeroVision EndDAO: Last written address was 393279 (6003Fh)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:12 #27 Phase 38 File APIProgress.cpp, Line 285
[20:17:17] NeroVision Burn process failed at 18x (24,930 KB/s)
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:12 #28 Text 0 File SCSIPTICommands.cpp, Line 261
[20:17:17] NeroVision SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:17 #29 Text 0 File Cdrdrv.cpp, Line 11159
[20:17:17] NeroVision DriveLocker: UnLockVolume completed
[20:17:17] NeroVision
[20:17:17] NeroVision 20:17:17 #30 Text 0 File SCSIPTICommands.cpp, Line 424
[20:17:17] NeroVision UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL
[20:17:17] NeroVision
[20:17:17] NeroVision Existing drivers:
[20:17:17] NeroVision Registry Keys:
[20:17:17] NeroVision HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)
please help me! need to burn this for a display tomorrow!