I has in the middle of a large 99 gig backup to dvd. It ran into an error writing to disk 17. It had more than half way finished. Is there a way to restore the files on disks 1-16? Ideally, I would like to not have to re-backup those files (and lose the 16 dvd's and the hours of work!)

Or, is it hopeless?

Below is the final info from the log:
------------------------
===================================================================
1C82-0010-8011-0000-6607-4452-****

Windows XP 6.0
AMD64
Wow64Process
WinAspi: -

NT-SPTI used
Nero API version: 7.5.9.0
Using interface version: 7.5.0.0
Installed in: E:\Utilities\Nero 7\Nero BackItUp\NeroFiles\
Application: Nero\Nero BackItUp
Internal Version: 7, 5, 9, 0

Recorder: Version: GL03 - HA 1 TA 1 - 7.5.9.0
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

=== Scsi-Device-Map ===
: WDC WD5000KS-00MNB0 07.0 nvstor64 Port 2 ID 0 DMA: Off
: WDC WD2500KS-00MJB0 02.0 nvstor64 Port 3 ID 0 DMA: Off
: WDC WD5000KS-00MNB0 07.0 nvstor64 Port 3 ID 1 DMA: Off
CdRomPeripheral : ROXIO DVD-ROM EMULATOR2.00 c2scsi64 Port 4 ID 0 DMA: Off
CdRomPeripheral : IV4713M ETR075H 1.0 a7dok67j Port 6 ID 0 DMA: Off

=== CDRom-Device-Map ===
SONY DVD-ROM DDU1615 M: CDRom0
LITE-ON DVDRW LH-18A1P N: CDRom1
ROXIO DVD-ROM EMULATOR O: CDRom2
IV4713M ETR075H P: CDRom5
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 83886080 (0) Byte
BUFE : 0
Physical memory : 3325MB (3405696kB)
Free physical memory: 1214MB (1243340kB)
Memory in use : 63 %
Uncached PFiles: 0x0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

17.6.2007
NeroAPI
5:46:39 PM #1 Text 0 File SCSIPTICommands.cpp, Line 411
LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL

5:46:42 PM #2 Text 0 File AudioCompilationImpl.cpp, Line 838
DRM: StartDrmRecording(RealRec:1, ImageRec:0, Copies:1)
DRM: Beginning burn process.

5:46:42 PM #3 ISO9660GEN -11 File Geniso.cpp, Line 3332
First writeable address = 0 (0x00000000)

5:46:42 PM #4 Text 0 File Burncd.cpp, Line 3451
Turn on Disc-At-Once, using DVD media

5:46:42 PM #5 Phase 167 File APIProgress.cpp, Line 282
Not able to write Disc-at-once on an open disc.

5:46:42 PM #6 Text 0 File DlgWaitCD.cpp, Line 318
Write in overburning mode: NO

5:46:42 PM #7 Text 0 File DlgWaitCD.cpp, Line 2903
Recorder: LITE-ON DVDRW LH-18A1P, Media type: DVD-R
Disc Manufacturer: RITEKF - 1
Disc Application Code: 64, Disc Physical Code: 193

5:46:42 PM #8 Text 0 File DlgWaitCD.cpp, Line 490
>>> Protocol of DlgWaitCD activities: <<<
=========================================

5:46:42 PM #9 Text 0 File AudioCompilationImpl.cpp, Line 863
DRM: DRM burn session terminated.

5:46:42 PM #10 Text 0 File AudioCompilationImpl.cpp, Line 892
DRM: Closing entire DRM handling. Bye.

5:46:42 PM #11 Text 0 File SCSIPTICommands.cpp, Line 411
UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL


Existing drivers:
File 'Drivers\CDR4_2K.SYS': Ver=8.0.0.212 , size=2432 bytes, created 5/4/2006 2:00:00 AM
File 'Drivers\CDRALW2K.SYS': Ver=8.0.0.212 , size=2560 bytes, created 5/4/2006 2:00:00 AM
File 'Drivers\PXHELP20.SYS': Ver=3.00.29a, size=36496 bytes, created 5/4/2006 2:00:00 AM (Prassi/Veritas driver for win 2K)

Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon
===================================================================
05:46:42 PM Some error has been occurred while burning data to disc!!!
Source file: BackupDocBase.cpp, Line: 2480

05:46:42 PM Program received some error while creating backup to disc!!!
Source file: BackupDocBase.cpp, Line: 2552

05:46:42 PM Delete Directory (C:\Users\Rigwald\AppData\Roaming\Ahead\Nero BackItUp\Cache\20070617_083950_Gamez 2007) has been failed. System error: (2) The system cannot find the file specified.
Source file: LBWinFile.cpp, Line: 365

05:47:24 PM Backup process failed.
Source file: BackupDocBase.cpp, Line: 2026