It just worked randomly. Here's the info, I didn't do anything different.
LITE-ON DVDRW LH-18A1P GL0J (ATA)
Current Profile: DVD+R DL
Disc Information:
Status: Complete
State of Last Session: Complete
Erasable: No
Sessions: 1
Sectors: 3,775,584
Size: 7,732,396,032 bytes
Time: 839:03:09 (MM:SS:FF)
Supported Write Speeds: 2.4x, 4x, 6x, 8x
DVD±R DL Boundary Information:
L0 Data Zone Capacity: 1,887,792
Changeable: No
TOC Information:
Session 1... (LBA: 0)
-> Track 01 (Mode 1, LBA: 0 - 3775583)
-> LeadOut (LBA: 3775584)
Disc Control Blocks Information:
LITE-ON
Physical Format Information (ADIP - L0):
Disc ID: RITEK-S04-66
Book Type: DVD+R DL
Part Version: 1
Disc Size: 120mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um/bit
Track Density: 0.74 um/track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,283,519
Physical Format Information (ADIP - L1):
Disc ID: RITEK-S04-66
Book Type: DVD+R DL
Part Version: 1
Disc Size: 120mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um/bit
Track Density: 0.74 um/track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,283,519
Physical Format Information (Last Recorded - L0):
Disc ID: RITEK-S04-66
Book Type: DVD-ROM
Part Version: 1
Disc Size: 120mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um/bit
Track Density: 0.74 um/track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,084,399
Physical Format Information (Last Recorded - L1):
Disc ID: RITEK-S04-66
Book Type: DVD-ROM
Part Version: 1
Disc Size: 120mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um/bit
Track Density: 0.74 um/track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,084,399
Layer Information:
Layer 0 Sectors: 1,887,792 (50%)
Layer 1 Sectors: 1,887,792 (50%)
Performance (Write Speed):
Descriptor 1...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 3775583 (0x00399C5F)
-> RS: 23,052 KB/s (17.1x) - WS: 3,324 KB/s (2.4x)
Descriptor 2...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 3775583 (0x00399C5F)
-> RS: 23,052 KB/s (17.1x) - WS: 5,540 KB/s (4x)
Descriptor 3...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 3775583 (0x00399C5F)
-> RS: 23,052 KB/s (17.1x) - WS: 8,310 KB/s (6x)
Descriptor 4...
-> B0: 0x00, B1: 0x00, B2: 0x00, B3: 0x00
-> EL: 3775583 (0x00399C5F)
-> RS: 23,052 KB/s (17.1x) - WS: 11,080 KB/s (8x)