Thank you for your reply.
The verify has just finished. It took ten and a half hours. I pressed the log button and it had a message that said something about me putting my head in the sand? I found this information under "device" :-
TSSTcorp CDDVDW SH-224BB SB00 (SATA)
Current Profile: DVD-R
Disc Information:
Status: Complete
State of Last Session: Complete
Erasable: No
Sessions: 1
Sectors: 2,176,128
Size: 4,456,710,144 bytes
Time: 483:37:03 (MM:SS:FF)
MID: MCC 03RG20
Supported Write Speeds: 4x, 6x, 8x, 10x, 12x, 14x, 16x
TOC Information:
Session 1... (LBA: 0)
-> Track 01 (Mode 1, LBA: 0 - 2176127)
-> LeadOut (LBA: 2176128)
Pre-recorded Information:
Manufacturer ID: MCC 03RG20
Recording Management Area Information:
TSSTcorp SH-224BB
Physical Format Information (Last Recorded):
Disc ID: 0@P-!-00
Book Type: DVD-R
Part Version: 5
Disc Size: 120 mm
Maximum Read Rate: Not Specified
Number of Layers: 1
Track Path: Parallel Track Path (PTP)
Linear Density: 0.267 um/bit
Track Density: 0.74 um/track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 2,372,735
Last Physical Sector in Layer 0: 0
Performance (Write Speed):
Descriptor 1...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 5,540 KB/s (4x)
Descriptor 2...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 8,310 KB/s (6x)
Descriptor 3...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 11,080 KB/s (8x)
Descriptor 4...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 13,850 KB/s (10x)
Descriptor 5...
-> B0: 0x08, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 16,620 KB/s (12x)
Descriptor 6...
-> B0: 0x08, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 19,390 KB/s (14x)
Descriptor 7...
-> B0: 0x08, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2297887 (0x0023101F)
-> RS: 55,400 KB/s (40x) - WS: 22,160 KB/s (16x)
The DVD I burned seems to have been succesful.
Found this after I closed IMGBURN :-
; //****************************************\\
; ImgBurn Version 2.5.8.0 - Log
; Monday, 25 November 2013, 21:45:54
; \\****************************************//
;
;
I 09:31:35 ImgBurn Version 2.5.8.0 started!
I 09:31:35 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1)
I 09:31:35 Total Physical Memory: 4,149,444 KiB - Available: 2,493,976 KiB
I 09:31:35 Initialising SPTI...
I 09:31:35 Searching for SCSI / ATAPI devices...
I 09:31:36 -> Drive 1 - Info: TSSTcorp CDDVDW SH-224BB SB00 (D:) (SATA)
I 09:31:36 -> Drive 2 - Info: HL-DT-ST DVDRRW GSA-2164D 1.01 (L:) (USB 2.0)
I 09:31:36 Found 2 DVD±RW/RAMs!
I 09:33:39 Operation Started!
I 09:33:39 Building Image Tree...
I 09:33:56 Checking Directory Depth...
I 09:33:56 Calculating Totals...
I 09:33:56 Preparing Image...
I 09:33:56 Checking Path Length...
I 09:33:56 Contents: 11 Files, 2 Folders
I 09:33:56 Content Type: DVD Video
I 09:33:56 Data Type: MODE1/2048
I 09:33:56 File System(s): ISO9660, UDF (1.02)
I 09:33:56 Volume Label: DB-X-251113-0078
I 09:33:56 IFO/BUP 32K Padding: Enabled
I 09:33:56 Region Code: 1, 2, 3, 4, 5, 6, 8
I 09:33:56 TV System: PAL
I 09:33:56 Size: 4,456,132,608 bytes
I 09:33:56 Sectors: 2,175,846
I 09:33:56 Image Size: 4,456,710,144 bytes
I 09:33:56 Image Sectors: 2,176,128
I 09:34:05 Operation Successfully Completed! - Duration: 00:00:26
I 09:34:05 Operation Started!
I 09:34:05 Source File: -==/\/[bUILD IMAGE]\/\==-
I 09:34:05 Source File Sectors: 2,176,128 (MODE1/2048)
I 09:34:05 Source File Size: 4,456,710,144 bytes
I 09:34:05 Source File Volume Identifier: DB-X-251113-0078
I 09:34:05 Source File Volume Set Identifier: 43794C330021347F
I 09:34:05 Source File Application Identifier: IMGBURN V2.5.8.0 - THE ULTIMATE IMAGE BURNER!
I 09:34:05 Source File Implementation Identifier: ImgBurn
I 09:34:05 Source File File System(s): ISO9660, UDF (1.02)
I 09:34:05 Destination Device: [0:0:0] TSSTcorp CDDVDW SH-224BB SB00 (D:) (SATA)
I 09:34:05 Destination Media Type: DVD-R (Disc ID: MCC 03RG20)
I 09:34:05 Destination Media Supported Write Speeds: 4x, 6x, 8x, 10x, 12x, 14x, 16x
I 09:34:05 Destination Media Sectors: 2,298,496
I 09:34:05 Write Mode: DVD
I 09:34:05 Write Type: DAO
I 09:34:05 Write Speed: 1x
I 09:34:05 Link Size: Auto
I 09:34:05 Lock Volume: Yes
I 09:34:05 Test Mode: No
I 09:34:05 OPC: No
I 09:34:05 BURN-Proof: Enabled
W 09:34:05 Write Speed Miscompare! - Wanted: 1,385 KB/s (1x), Got: 5,540 KB/s (4x)
W 09:34:05 The drive only supports writing these discs at 4x, 6x, 8x, 10x, 12x, 14x, 16x.
I 09:34:06 Filling Buffer... (80 MiB)
I 09:34:07 Writing LeadIn...
I 09:34:37 Writing Session 1 of 1... (1 Track, LBA: 0 - 2176127)
I 09:34:37 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2176127)
I 09:47:51 Synchronising Cache...
I 09:48:09 Exporting Graph Data...
I 09:48:09 Graph Data File: C:\Users\Donald\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_CDDVDW_SH-224BB_SB00_MONDAY-25-NOVEMBER-2013_9-34_AM_MCC_03RG20_1x.ibg
I 09:48:09 Export Successfully Completed!
I 09:48:09 Operation Successfully Completed! - Duration: 00:14:03
I 09:48:09 Average Write Rate: 5,488 KiB/s (4.1x) - Maximum Write Rate: 5,637 KiB/s (4.2x)
I 09:48:09 Cycling Tray before Verify...
W 09:48:15 Waiting for device to become ready...
I 09:48:19 Device Ready!
I 09:48:21 Operation Started!
I 09:48:21 Source Device: [0:0:0] TSSTcorp CDDVDW SH-224BB SB00 (D:) (SATA)
I 09:48:21 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: MCC 03RG20)
I 09:48:21 Source Media Supported Read Speeds: 4x, 6x, 8x, 12x, 14x
I 09:48:21 Source Media Supported Write Speeds: 4x, 6x, 8x, 10x, 12x, 14x, 16x
I 09:48:21 Source Media Sectors: 2,176,128 (Track Path: PTP)
I 09:48:21 Source Media Size: 4,456,710,144 bytes
I 09:48:21 Image File: -==/\/[bUILD IMAGE]\/\==-
I 09:48:21 Image File Sectors: 2,176,128 (MODE1/2048)
I 09:48:21 Image File Size: 4,456,710,144 bytes
I 09:48:21 Image File Volume Identifier: HX-RawForRent
I 09:48:21 Image File Volume Set Identifier: 43794C330021347F
I 09:48:21 Image File Application Identifier: IMGBURN V2.5.8.0 - THE ULTIMATE IMAGE BURNER!
I 09:48:21 Image File Implementation Identifier: ImgBurn
I 09:48:21 Image File File System(s): ISO9660, UDF (1.02)
I 09:48:21 Read Speed (Data/Audio): MAX / MAX
I 09:48:22 Read Speed - Effective: 6x - 14x
I 09:48:22 Verifying Session 1 of 1... (1 Track, LBA: 0 - 2176127)
I 09:48:22 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 2176127)
I 20:40:07 Exporting Graph Data...
I 20:40:07 Graph Data File: C:\Users\Donald\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_CDDVDW_SH-224BB_SB00_MONDAY-25-NOVEMBER-2013_9-34_AM_MCC_03RG20_1x.ibg
I 20:40:07 Export Successfully Completed!
I 20:40:07 Operation Successfully Completed! - Duration: 10:51:44
I 20:40:07 Average Verify Rate: 111 KiB/s (0.1x) - Maximum Verify Rate: 21,543 KiB/s (15.9x)
I 21:45:53 Close Request Acknowledged
I 21:45:53 Closing Down...
I 21:45:53 Shutting down SPTI...
I 21:45:54 ImgBurn closed!
Hope all of this has been of some help.
In the meantime I will just burn the discs and then test them by putting them in a DVD player and seeing if they work. - not verifying them.