[QUOTE=chef;2416841]If it can burn +R then it can burn -R too.
Post a full logfile here.[/QUOTE]
I’m not sure what log file you wanted, but here is the information from ImgBurn on a DVD-R and a DVD+R, you can see the Blank DVD-R isn’t being read properly.
Infomation from ImgBurn;
[B]DVD-R;[/B]
Optiarc DVD RW AD-7191A 1.05 (ATA)
Current Profile: Unknown
Disc Information:
Status: Unknown
Erasable: Unknown
Formatted: Unknown
Sessions: Unknown
[B]DVD+R;[/B]
Optiarc DVD RW AD-7191A 1.05 (ATA)
Current Profile: DVD+R
Disc Information:
Status: Empty
Erasable: No
Free Sectors: 2,295,104
Free Space: 4,700,372,992 bytes
Free Time: 510:03:29 (MM:SS:FF)
Supported Write Speeds: 4x, 6x, 8x, 12x, 16x
Physical Format Information (ADIP):
Disc ID: CMC MAG-M01-00
Book Type: DVD+R
Part Version: 1
Disc Size: 120mm
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: 2,491,711
Last Physical Sector in Layer 0: 0
Physical Format Information (Last Recorded):
Disc ID: CMC MAG-M01-00
Book Type: DVD+R
Part Version: 1
Disc Size: 120mm
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: 2,491,711
Last Physical Sector in Layer 0: 0
Performance (Write Speed):
Descriptor 1…
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2295103 (0x0023053F)
-> RS: 22,160 KB/s (16x) - WS: 5,540 KB/s (4x)
Descriptor 2…
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2295103 (0x0023053F)
-> RS: 22,160 KB/s (16x) - WS: 8,310 KB/s (6x)
Descriptor 3…
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2295103 (0x0023053F)
-> RS: 22,160 KB/s (16x) - WS: 11,080 KB/s (8x)
Descriptor 4…
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2295103 (0x0023053F)
-> RS: 22,160 KB/s (16x) - WS: 16,620 KB/s (12x)
Descriptor 5…
-> B0: 0x08, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 2295103 (0x0023053F)
-> RS: 22,160 KB/s (16x) - WS: 22,160 KB/s (16x)
-Ftwelve