Thank you for reply. I used for the first time DVD+R DL (Disc ID: RICOHJPN-D01-67) (Speeds: 4x, 6x, 8x) and didn't have a problem burning my own 3 hour DVD on Old steam trains. This is what the log said on my latest burn at the bottom after it completed the burn successfully. I still didn't understand what the files meant before burning though. Did I have to select each one and tick seamless or something because I didn't select anything just clicked OK after selecting the first in the line-up. Also I have never had a failure with single layer Ritek Traxdata Inkjet Printable discs.
W 18:51:11 Failed to Read Sector 1130512 - Timeout on Logical Unit
W 18:51:11 Sector 1130512 maps to File: VIDEO_TS\VTS_01_2.VOB
W 18:51:20 Failed to Read Sector 1130513 - Timeout on Logical Unit
W 18:51:20 Sector 1130513 maps to File: VIDEO_TS\VTS_01_2.VOB
W 18:51:41 Failed to Read Sector 1130514 - Timeout on Logical Unit
W 18:51:41 Sector 1130514 maps to File: VIDEO_TS\VTS_01_2.VOB
W 18:51:50 Failed to Read Sector 1130515 - Timeout on Logical Unit
W 18:51:50 Sector 1130515 maps to File: VIDEO_TS\VTS_01_2.VOB
W 18:52:00 Failed to Read Sector 1130516 - Timeout on Logical Unit
W 18:52:00 Sector 1130516 maps to File: VIDEO_TS\VTS_01_2.VOB
E 18:52:08 Failed to Read Sector 1130517 - Timeout on Logical Unit
E 18:52:08 Sector 1130517 maps to File: VIDEO_TS\VTS_01_2.VOB
E 18:52:08 Failed to Verify Sectors!
E 18:52:08 Operation Failed! - Duration: 00:06:58
I 18:52:08 Average Verify Rate: 5,409 KB/s (3.9x) - Maximum Verify Rate: 9,081 KB/s (6.6x)
I 18:52:15 Close Request Acknowledged
I 18:52:15 Closing Down...
I 18:52:15 Shutting down SPTI...
I 18:52:15 ImgBurn closed!