Having problems burning DVD's

[panaphobic]

I am burning copies of DVD Navigation Maps. There are 2 discs that I have made images for and have made 6 copies of each disc. All of these discs worked perfectly fine. After that though, every single disc does not work with the navigation system when I test them. I'm not sure what's going on. I am using the same DVD's I was before (came in the same cake stack). I have 2 different DVD burners, both worked fine for both discs I needed to burn. I have tried using different discs, creating new .iso files from the originals, using a different computer (creating new .iso files on that computer as well), but nothing seems to be working. It burns fine, I don't get any errors during burning or during verification. My computer cannot read the DVD's since it's not computer software or anything so I can only test the new DVD's on the actual navigation system. I'm not sure what's going on here, but like I said, the first 6 sets worked perfectly, after that, the new ones I made did not work at all. I have been using the same settings the whole time and just can't figure this out. I even tried it again last night from my home computer, copied both DVD's, then burned the images back to new DVD's, and both didn't work when I tested them.

If you can help me out with this, I would really appreciate it!

Here's the log information from the last copy I tried making. (This is identical to the log from the ones that did work too):
 

I 09:28:03 Write Speed: 1x

I 09:28:03 DVD+R Reserve Track: No

I 09:28:03 Link Size: Auto

I 09:28:03 Lock Volume: Yes

I 09:28:03 Test Mode: No

I 09:28:03 OPC: No

I 09:28:03 BURN-Proof: Enabled

W 09:28:03 Write Speed Miscompare! - Wanted: 1,385 KB/s (1x), Got: 8,310 KB/s (6x)

W 09:28:03 The drive only supports writing these discs at 6x, 8x, 16x.

I 09:28:04 Filling Buffer... (80 MiB)

I 09:28:04 Writing LeadIn...

I 09:28:21 Writing Session 1 of 1... (1 Track, LBA: 0 - 2140255)

I 09:28:21 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2140255)

I 09:37:06 Synchronising Cache...

I 09:37:07 Closing Track...

I 09:37:10 Finalising Disc...

I 09:37:48 Exporting Graph Data...

I 09:37:48 Graph Data File: C:\Users\Bill\AppData\Roaming\ImgBurn\Graph Data Files\hp_DVD-RAM_GHA3N_RH06_THURSDAY-DECEMBER-19-2013_9-28_AM_CMC_MAG-M01-00_1x.ibg

I 09:37:48 Export Successfully Completed!

I 09:37:48 Operation Successfully Completed! - Duration: 00:09:45

I 09:37:48 Average Write Rate: 8,153 KiB/s (6.0x) - Maximum Write Rate: 8,192 KiB/s (6.1x)

I 09:37:48 Cycling Tray before Verify...

W 09:37:56 Waiting for device to become ready...

I 09:38:05 Device Ready!

I 09:38:07 Operation Started!

I 09:38:07 Source Device: [0:0:0] hp DVD-RAM GHA3N RH06 (I:) (SATA)

I 09:38:07 Source Media Type: DVD+R (Book Type: DVD-ROM) (Disc ID: CMC MAG-M01-00)

I 09:38:07 Source Media Supported Read Speeds: 2.3x, 4.7x, 8x, 10x, 11.7x, 15.6x

I 09:38:07 Source Media Supported Write Speeds: 6x, 8x, 16x

I 09:38:07 Source Media Sectors: 2,140,256 (Track Path: PTP)

I 09:38:07 Source Media Size: 4,383,244,288 bytes

I 09:38:07 Image File: C:\Users\Bill\Documents\2014 Navigation Disc 2 of 2 (HIGH) version\NAV_DB.ISO

I 09:38:07 Image File Sectors: 2,140,256 (MODE1/2048)

I 09:38:07 Image File Size: 4,383,244,288 bytes

I 09:38:07 Image File Volume Identifier: NAV_DB

I 09:38:07 Image File Volume Set Identifier: CARIN

I 09:38:07 Image File File System(s): ISO9660

I 09:38:07 Read Speed (Data/Audio): MAX / MAX

I 09:38:08 Read Speed - Effective: 6.6x - 15.6x

I 09:38:09 Verifying Session 1 of 1... (1 Track, LBA: 0 - 2140255)

I 09:38:09 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 2140255)

I 09:42:47 Exporting Graph Data...

I 09:42:47 Graph Data File: C:\Users\Bill\AppData\Roaming\ImgBurn\Graph Data Files\hp_DVD-RAM_GHA3N_RH06_THURSDAY-DECEMBER-19-2013_9-28_AM_CMC_MAG-M01-00_1x.ibg

I 09:42:47 Export Successfully Completed!

I 09:42:47 Operation Successfully Completed! - Duration: 00:04:39

I 09:42:47 Average Verify Rate: 15,453 KiB/s (11.4x) - Maximum Verify Rate: 21,975 KiB/s (16.2x)

 

[LIGHTNING UK!]

I wish I could help but I'm afraid I can't.

 

The disc burnt and verified ok so it's 100% readable in the drive that wrote it. Any issue beyond that is down to the source file or the playback device.

 

I'd probably still give it another go with some decent Verbatim or Taiyo Yuden discs though. Just in case it is a readability of the burnt disc issue.