The problem: the program simply won't write to the disc. I've tried other discs, it's wrote to CD-Rs, it just refuses to write to a DVD+R.
Log:
I 15:52:48 Operation Started!
I 15:52:48 Source File: C:\Users\Cynthia\Desktop\10.4.6.iso
I 15:52:48 Source File Sectors: 2,294,272 (MODE1/2048)
I 15:52:48 Source File Size: 4,698,669,056 bytes
I 15:52:48 Source File Volume Identifier: Mac OS X Install Disc x86
I 15:52:48 Source File Application Identifier: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR
I 15:52:48 Source File File System(s): ISO9660 (Bootable)
I 15:52:48 Destination Device: [1:0:0] TSSTcorp DVD+-RW TS-L632D DE04 (E:) (ATA)
I 15:52:48 Destination Media Type: DVD+R (Disc ID: MBIPG101-R04-01) (Speeds: 2.4x, 4x, 6x, 8x)
I 15:52:48 Destination Media Sectors: 2,295,104
I 15:52:48 Write Mode: DVD
I 15:52:48 Write Type: DAO
I 15:52:48 Write Speed: MAX
I 15:52:48 Link Size: Auto
I 15:52:48 Test Mode: No
I 15:52:48 BURN-Proof: Enabled
I 15:52:48 Filling Buffer... (40 MB)
I 15:52:49 Writing LeadIn...
I 15:53:02 Writing Image... (LBA: 0 - 2294271)
I 16:03:08 Synchronising Cache...
I 16:03:16 Closing Track...
I 16:03:24 Finalising Disc...
I 16:03:46 Image MD5: 5c88e09705ebde2baf1bf19832bdd37a
I 16:03:46 Operation Successfully Completed! - Duration: 00:10:58
I 16:03:46 Average Write Rate: 7,571 KB/s (5.5x) - Maximum Write Rate: 11,133 KB/s (8.0x)
I 16:03:46 Cycling Tray before Verify...
W 16:03:52 Waiting for device to become ready...