So yes, my track record of running into problems has not stopped: I have yet reached another error. Apparently ImgBurn cannot finalize my disc. Here is the log:
I 03:29:01 ImgBurn Version 2.5.8.0 started!
I 03:29:01 Microsoft Windows 7 Home Premium Edition (6.1, Build 7601 : Service Pack 1)
I 03:29:01 Total Physical Memory: 3,537,464 KiB - Available: 2,469,172 KiB
I 03:29:01 Initialising SPTI...
I 03:29:01 Searching for SCSI / ATAPI devices...
I 03:29:23 -> Drive 1 - Info: TSSTcorp CD/DVDW TS-H653L 0514 (E:) (ATA)
I 03:29:23 Found 1 DVD±RW/RAM!
I 03:30:46 Operation Started!
I 03:30:46 Building Image Tree...
I 03:30:49 Corrected file system selection for Operating System installation disc.
I 03:30:51 Checking Directory Depth...
I 03:30:51 Calculating Totals...
I 03:30:51 Preparing Image...
I 03:30:52 Checking Path Length...
I 03:30:52 Contents: 877 Files, 199 Folders
I 03:30:52 Content Type: Operating System Installation
I 03:30:52 Data Type: MODE1/2048
I 03:30:52 File System(s): UDF (1.02) (Bootable)
I 03:30:52 Volume Label: Windows 7 Recovery Disc
I 03:30:52 Size: 3,335,912,562 bytes
I 03:30:52 Sectors: 1,629,246
I 03:30:52 Image Size: 3,339,911,168 bytes
I 03:30:52 Image Sectors: 1,630,816
I 03:30:53 Operation Successfully Completed! - Duration: 00:00:07
I 03:30:53 Operation Started!
I 03:30:53 Source File: -==/\/[bUILD IMAGE]\/\==-
I 03:30:53 Source File Sectors: 1,630,816 (MODE1/2048)
I 03:30:53 Source File Size: 3,339,911,168 bytes
I 03:30:53 Source File Volume Identifier: Windows 7 Recovery Disc
I 03:30:53 Source File Volume Set Identifier: 43541BD70018E25F
I 03:30:53 Source File Application Identifier: IMGBURN V2.5.8.0 - THE ULTIMATE IMAGE BURNER!
I 03:30:53 Source File Implementation Identifier: ImgBurn
I 03:30:53 Source File File System(s): ISO9660 (Bootable), UDF (1.02)
I 03:30:53 Destination Device: [2:1:0] TSSTcorp CD/DVDW TS-H653L 0514 (E:) (ATA)
I 03:30:53 Destination Media Type: DVD+R (Disc ID: SONY-D21-00)
I 03:30:53 Destination Media Supported Write Speeds: 4x, 8x, 12x, 16x
I 03:30:53 Destination Media Sectors: 2,295,104
I 03:30:53 Write Mode: DVD
I 03:30:53 Write Type: DAO
I 03:30:53 Write Speed: 8x
I 03:30:53 DVD+R Reserve Track: No
I 03:30:53 Link Size: Auto
I 03:30:53 Lock Volume: Yes
I 03:30:53 Test Mode: No
I 03:30:53 OPC: No
I 03:30:53 BURN-Proof: Enabled
I 03:30:53 Write Speed Successfully Set! - Effective: 11,080 KB/s (8x)
I 03:30:53 Book Type Setting: DVD-ROM
I 03:30:54 Filling Buffer... (80 MiB)
I 03:30:56 Writing LeadIn...
I 03:31:42 Writing Session 1 of 1... (1 Track, LBA: 0 - 1630815)
I 03:31:42 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1630815)
I 03:37:28 Synchronising Cache...
I 03:37:36 Closing Track...
W 03:39:55 Potential 'WaitImmediateIO' Deferred Error - (0%, 0/3) - Program Memory Area Update Failure
W 03:39:55 Close Track Failed! - Reason: Program Memory Area Update Failure
W 03:39:55 Retrying (1 of 3)...
I 03:39:56 Finalising Disc...
W 03:42:07 Potential 'WaitImmediateIO' Deferred Error - (0%, 0/3) - Session Fixation Error Writing Lead In
W 03:42:07 Finalise Disc Failed! - Reason: Session Fixation Error Writing Lead In
W 03:42:07 Retrying (1 of 3)...
W 03:44:19 Potential 'WaitImmediateIO' Deferred Error - (0%, 0/3) - Session Fixation Error Writing Lead In
W 03:44:20 Retry Failed - Reason: Session Fixation Error Writing Lead In
W 03:44:20 Retrying (2 of 3)...
EDIT: Although this happened, it seems to work fine. Thanks!