Freezing at Burn-Proof

[OhMrBigshot]

Hi, I'm trying to burn a 3.3 GB ISO on a DVD-R DL (don't have a non-DL one, but I managed to burn other smaller ISOs on them just fine). It freezes at the end of the following log, no ETA on the UI:

 

I 08:49:21 ImgBurn Version 2.5.7.0 started!
I 08:49:21 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1)
I 08:49:21 Total Physical Memory: 3,985,984 KB  -  Available: 1,621,552 KB
I 08:49:21 Initialising SPTI...
I 08:49:21 Searching for SCSI / ATAPI devices...
I 08:49:21 -> Drive 1 - Info: DTSOFT BDROM 1.05 (H:) (Virtual)
I 08:49:22 -> Drive 2 - Info: Slimtype DVD A DS8A5SH XS21 (E:) (SATA)
I 08:49:22 Found 1 DVD±RW/RAM and 1 BD-ROM!
W 09:09:28 User accepted disc space warning and is attempting to underburn!
I 09:09:28 Operation Started!
I 09:09:28 Source File: SOMEFILE.ISO
I 09:09:28 Source File Sectors: 1,748,952 (MODE1/2048)
I 09:09:28 Source File Size: 3,581,853,696 bytes
I 09:09:28 Source File Volume Identifier: HRM_CCSA_X64FRE_EN-US_DV5
I 09:09:28 Source File Volume Set Identifier: e2586780MS UDFBridge
I 09:09:28 Source File Application Identifier: CDIMAGE 2.53 (01/01/2005 TM)
I 09:09:28 Source File Implementation Identifier: Microsoft CDIMAGE UDF
I 09:09:28 Source File File System(s): ISO9660 (Bootable), UDF (1.02)
I 09:09:28 Destination Device: [1:0:0] Slimtype DVD A DS8A5SH XS21 (E:) (SATA)
I 09:09:28 Destination Media Type: DVD+R DL (Disc ID: CMC MAG-D03-64)
I 09:09:29 Destination Media Supported Write Speeds: 3x
I 09:09:29 Destination Media Sectors: 4,173,824
I 09:09:29 Write Mode: DVD
I 09:09:29 Write Type: DAO
I 09:09:29 Write Speed: MAX
I 09:09:29 DVD+R DL Reserve Track: No
I 09:09:29 Link Size: Auto
I 09:09:29 Lock Volume: Yes
I 09:09:29 Test Mode: No
I 09:09:29 OPC: No
I 09:09:29 BURN-Proof: Enabled

[LIGHTNING UK!]

Look in the status bar at the bottom of the main window.... it'll say something else (not related to burn-proof).