hi trying to burn iso's to disk but keep getting these errors in imgburn

I 18:00:47 ImgBurn Version 2.5.7.0 started!
I 18:00:47 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1)
I 18:00:47 Total Physical Memory: 3,930,676 KB - Available: 2,578,744 KB
W 18:00:47 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 18:00:47 Initialising SPTI...
I 18:00:47 Searching for SCSI / ATAPI devices...
I 18:00:49 -> Drive 1 - Info: ATAPI iHAS524 B AL2A (E (ATA)
I 18:00:49 -> Drive 2 - Info: VCBIT PIZ4DQB8PU 1.03 (H (SCSI)
I 18:00:49 Found 1 DVDRW/RAM and 1 BD-ROM/HD DVD-ROM!
I 18:03:07 Operation Started!
I 18:03:07 Source File: C:\Users\sarahholloway\Downloads\Hitman.Absolution.XBOX360-SWAG\swag-ha.dvd
I 18:03:07 Source File Sectors: 4,267,015 (MODE1/2048)
I 18:03:07 Source File Size: 8,738,846,720 bytes
I 18:03:07 Source File Volume Identifier: DVD_ROM
I 18:03:07 Source File Volume Set Identifier: 7fe8000
I 18:03:08 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM)
I 18:03:08 Source File Implementation Identifier: Microsoft CDIMAGE UDF
I 18:03:08 Source File File System(s): ISO9660, UDF (1.50)
I 18:03:08 Destination Device: [2:2:0] ATAPI iHAS524 B AL2A (E (ATA)
I 18:03:08 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00)
I 18:03:08 Destination Media Supported Write Speeds: 2.4x, 4x, 6x, 8x
I 18:03:08 Destination Media Sectors: 4,267,040
I 18:03:08 Write Mode: DVD
I 18:03:08 Write Type: DAO
I 18:03:08 Write Speed: 2.4x
I 18:03:08 DVD+R DL Reserve Track: No
I 18:03:08 Link Size: Auto
I 18:03:08 Lock Volume: Yes
I 18:03:08 Test Mode: No
I 18:03:08 OPC: No
I 18:03:08 BURN-Proof: Enabled
I 18:03:08 Write Speed Successfully Set! - Effective: 3,324 KB/s (2.4x)
I 18:03:08 Book Type Setting: DVD-ROM
I 18:03:08 Advanced Settings - Force HT: No, Online HT: No, OverSpeed: No, SmartBurn: Yes
I 18:03:08 User Specified L0 Data Zone Capacity: 2,133,520
I 18:03:08 Set L0 Data Zone Capacity Succeeded!
I 18:03:10 Filling Buffer... (80 MB)
I 18:03:11 Writing LeadIn...
I 18:03:47 Writing Session 1 of 1... (1 Track, LBA: 0 - 4267014)
I 18:03:47 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 4267014)
I 18:03:47 Writing Layer 0... (LBA: 0 - 2133519)
I 18:25:45 Writing Layer 1... (LBA: 2133520 - 4267014)
W 18:38:55 Failed to Write Sectors 3400176 - 3400207 - Reason: The request could not be performed because of an I/O device error.
W 18:38:55 Retrying (1 of 20)...
I 18:38:55 Writing Sectors...
W 18:44:04 Failed to Write Sectors 3898736 - 3898767 - Reason: The request could not be performed because of an I/O device error.
W 18:44:04 Retrying (1 of 20)...
W 18:44:04 Retry Failed - Reason: The request could not be performed because of an I/O device error.
W 18:44:04 Retrying (2 of 20)...
I 18:44:04 Writing Sectors...
I 18:47:53 Synchronising Cache...
I 18:47:57 Closing Track...
I 18:47:58 Finalising Disc...
I 18:48:50 Exporting Graph Data...
I 18:48:50 Graph Data File: C:\Users\sarahholloway\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_iHAS524_B_AL2A_21-NOVEMBER-2012_18-03_MKM-003-00_2.4x.ibg
I 18:48:50 Export Successfully Completed!
I 18:48:50 Operation Successfully Completed! - Duration: 00:45:42
I 18:48:50 Average Write Rate: 3,226 KB/s (2.3x) - Maximum Write Rate: 3,384 KB/s (2.4x)
I 18:48:50 Cycling Tray before Verify...
W 18:48:57 Waiting for device to become ready...
I 18:49:14 Device Ready!
I 18:49:15 Operation Started!
I 18:49:15 Source Device: [2:2:0] ATAPI iHAS524 B AL2A (E (ATA)
I 18:49:15 Source Media Type: DVD+R DL (Book Type: DVD-ROM) (Disc ID: MKM-003-00)
I 18:49:15 Source Media Supported Write Speeds: 2.4x, 4x, 6x, 8x
I 18:49:15 Image File: C:\Users\sarahholloway\Downloads\Hitman.Absolution.XBOX360-SWAG\swag-ha.dvd
I 18:49:15 Image File Sectors: 4,267,015 (MODE1/2048)
I 18:49:15 Image File Size: 8,738,846,720 bytes
I 18:49:15 Image File Volume Identifier: DVD_ROM
I 18:49:15 Image File Volume Set Identifier: 7fe8000
I 18:49:15 Image File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM)
I 18:49:15 Image File Implementation Identifier: Microsoft CDIMAGE UDF
I 18:49:15 Image File File System(s): ISO9660, UDF (1.50)
I 18:49:15 Read Speed (Data/Audio): MAX / MAX
I 18:49:16 Verifying Session 1 of 1... (1 Track, LBA: 0 - 4267014)
I 18:49:16 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 4267014)
I 18:49:16 Verifying Layer 0... (LBA: 0 - 2133519)