Unable to recover TOC

I keep getting this error on verify portion of Burn…tried memorex 16x, 8x and Tdk 8x.
Had burn error on all movies and DVD(blanks) until I slowed the burn to 4x.
Now it seems to finish burning But Verify fails With “unable to recover TOC”
Have burned many Dvd’s Before and only thing that I changed was installing 300 GB HD. Could this be the problem?

I’m open to any suggestions

Thanks in advance, Tanthis

Dvd Decrypter 3.5.4.0
Daemon 3.0
Dvd Shrink 3.2
Nero 6

I 22:21:02 DVD Decrypter Version 3.5.4.0 started!
I 22:21:02 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 2)
I 22:21:02 Initialising SPTI…
I 22:21:02 Searching for SCSI / ATAPI devices…
I 22:21:02 Found 1 CD-RW, 4 DVD-ROMs and 1 DVD±RW!
I 22:21:31 Operation Started!
I 22:21:31 Source File: F:\DVD\BATMAN_BEGINS.ISO
I 22:21:31 Source File Sectors: 2,285,836 (MODE1/2048)
I 22:21:31 Source File Size: 4,681,392,128 bytes
I 22:21:31 Source File Implementation Identifier: DVD Shrink
I 22:21:31 Destination Device: [1:1:0] TOSHIBA CD/DVDW SD-R5372 TU56 (E: ) (ATA)
I 22:21:32 Destination Media Type: DVD-R (Disc ID: CMC MAG. AE1) (Speeds: 2x, 4x, 6x, 8x)
I 22:21:32 Destination Media Sectors: 2,297,888
I 22:21:32 Write Mode: DVD
I 22:21:32 Write Type: SAO
I 22:21:32 Write Speed: 4x
I 22:21:32 Link Size: Auto
I 22:21:32 Test Mode: No
I 22:21:32 BURN-Proof: Enabled
I 22:21:32 Filling Buffer…
I 22:21:33 Writing LeadIn…
I 22:21:42 Writing Image…
I 22:36:13 Synchronising Cache…
I 22:36:54 Operation Successfully Completed! - Duration: 00:15:22
I 22:36:54 Average Write Rate: 5,254 KB/s (3.8x) - Maximum Write Rate: 5,598 KB/s (4.0x)
I 22:36:54 Cycling Tray before Verify…
W 22:37:02 Waiting for device to become ready…

Am I in the wrong forum? Is this info somewhere else?