Here's the log file:
07:53:22 ImgBurn Version 2.3.2.0 started!
I 07:53:23 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 2)
I 07:53:23 Total Physical Memory: 523,056 KB - Available: 393,032 KB
I 07:53:32 Initialising SPTI...
I 07:53:32 Searching for SCSI / ATAPI devices...
I 07:53:33 Found 1 DVD?RW!
I 09:10:55 Operation Started!
I 09:10:55 Source File: D:\DOMINO.ISO
I 09:10:55 Source File Sectors: 1,216,666 (MODE1/2048)
I 09:10:55 Source File Size: 2,491,731,968 bytes
I 09:10:55 Source File Volume Identifier: DOMINO
I 09:10:55 Source File Implementation Identifier: mkisofs
I 09:10:55 Source File File System(s): ISO9660, UDF (1.02)
I 09:10:55 Destination Device: [1:0:0] MATSHITA UJ-820D 1.01 (F:) (ATA)
I 09:10:55 Destination Media Type: DVD-R (Disc ID: SONY16D1) (Speeds: 1x, 2x)
I 09:10:55 Destination Media Sectors: 2,298,496
I 09:10:55 Write Mode: DVD
I 09:10:55 Write Type: DAO
I 09:10:55 Write Speed: MAX
I 09:10:55 Link Size: Auto
I 09:10:55 Test Mode: No
I 09:10:55 BURN-Proof: Enabled
I 09:10:56 Filling Buffer... (20 MB)
I 09:11:00 Writing LeadIn...
I 09:11:21 Writing Image... (LBA: 0 - 1216665)
I 09:27:10 Synchronising Cache...
I 09:28:45 Image MD5: d12a49bb127a614d4ca636af3bfaa8e5
I 09:28:45 Operation Successfully Completed! - Duration: 00:17:50
I 09:28:45 Average Write Rate: 2,566 KB/s (1.9x) - Maximum Write Rate: 2,818 KB/s (2.0x)
I 09:28:45 Cycling Tray before Verify...
W 09:28:50 Waiting for device to become ready...
I 10:12:58 Device Ready!
I 10:12:58 Operation Started!
I 10:12:58 Source Device: [1:0:0] MATSHITA UJ-820D 1.01 (F:) (ATA)
I 10:12:58 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: SONY16D1) (Speeds: 1x, 2x)
I 10:12:58 Image File: D:\DOMINO.ISO
I 10:12:58 Image File Sectors: 1,216,666 (MODE1/2048)
I 10:12:58 Image File Size: 2,491,731,968 bytes
I 10:12:58 Image File Volume Identifier: DOMINO
I 10:12:58 Image File Implementation Identifier: mkisofs
I 10:12:58 Image File File System(s): ISO9660, UDF (1.02)
I 10:12:59 Verifying Sectors... (LBA: 0 - 1216665)
I 10:25:10 Device MD5: d12a49bb127a614d4ca636af3bfaa8e5
I 10:25:11 Image MD5: d12a49bb127a614d4ca636af3bfaa8e5
I 10:25:14 Operation Successfully Completed! - Duration: 00:12:12
I 10:25:14 Average Verify Rate: 3,328 KB/s (2.4x) - Maximum Verify Rate: 6,792 KB/s (4.9x)
I 10:39:51 Close Request Acknowledged
I 10:39:51 Closing Down...
I 10:39:53 Shutting down SPTI...
I 10:39:53 ImgBurn closed!
The player does play copies that I've made previously with CLONEDVD or other back-up copies which I've purchased from people.
Any ideas gratefully recieved.
Thanks