Sony DRU-820A fails to burn Dual Layer

Using the DVDFab platinum 4.1.2.0 software and Verbatim +R DL. I have only managed to burn one Dual Layer disk. All the rest have failed except for one that said "created successfully" but would not play either on the 820A or on a DVD player (said "incorrect disk"). I slowed the burning rate down to 2.4X (what it says on the media) but still no luck. Went to Sony to see about firmware update 1.0c (I have 1.0b) but the 820A is not listed for some reason. I can't find the 1.0c firmware anywhere. I read that this drive has a tendency to overheat. Here is the vso log and event log of my last failed attempt.


4/8/2008 2:33:30 AM info ******************** Report session closed *********************
4/8/2008 2:33:00 AM error Write error at 3462816 (16) - Code 05 21 02 [Illegal request, Invalid address for Write]
4/8/2008 2:33:00 AM warning Reporting invalid address for write during recovery - trying to continue
4/8/2008 2:32:59 AM warning at sector 3462800 (16) - recover sequence started
4/8/2008 2:32:59 AM warning Write error - Code 03 0C 00 [Write error] - Info 0 - CSI 0
4/8/2008 2:32:59 AM info Try #0 - duration 24626 µs
4/8/2008 1:56:28 AM info Lead-in burning time (mS) 0
4/8/2008 1:56:26 AM info Write started 3682256 sectors to write
4/8/2008 1:56:26 AM info Layer change set to LBA 2004992 (3.82 Gb.)
4/8/2008 1:55:59 AM info Writing speed requested x2.4, effective x2.4
4/8/2008 1:55:59 AM info Layer break set by user at sector 2004992
4/8/2008 1:55:59 AM info Available write speed: 6x, 4x, 2.4x
4/8/2008 1:55:59 AM info Media ID: MKM-001-00
4/8/2008 1:55:59 AM info Media type: Dual Layer DVD+R
4/8/2008 1:55:59 AM info DMA Mode
4/8/2008 1:55:56 AM info Write started
4/8/2008 1:55:49 AM info New media inserted. Burning layer is ready to write
4/8/2008 1:39:18 AM info Compatible media types : DVD-R, DVD-RW Seq., DVD-RW RO, DVDRAM, DVD+R, DVD+RW, CD-R, CD-RW, DL DVD+R, DL DVD-R
4/8/2008 1:39:18 AM info New Drive selected : 0:1:0 - SONY DVD RW DRU-820A 1.0b [D] (Ide)
4/8/2008 1:39:04 AM info Current Drive selected : 0:1:0 - SONY DVD RW DRU-820A 1.0b [D] (Ide)
4/8/2008 1:39:04 AM info Using Patin-Couffin driver Version 1.37, Internal revision 37 - Async. Access mode
4/8/2008 1:39:04 AM info User default language : 1033 (0x0409h) - English (United States)
4/8/2008 1:39:04 AM info System default language : 1033 (0x0409h) - English (United States)
4/8/2008 1:39:04 AM info DLL Version 2.1.7.338
4/8/2008 1:39:04 AM info DLL C:\Program Files\DVDFab Platinum 4\vso_hwe.dll
4/8/2008 1:39:04 AM info Version 4, 1, 2, 0
4/8/2008 1:39:04 AM info ExeName : "C:\Program Files\DVDFab Platinum 4\DVDFabPlatinum.exe"
4/8/2008 1:39:04 AM info OS : Microsoft Windows XP Professional Service Pack 2 (Build 2600)
4/8/2008 1:39:04 AM info ******************** Report session started ********************

01:39:18: Clone process started
01:54:51: Clone process completed successfully
01:55:56: Burn DVD image (C:\Documents and Settings\Joseph\My Documents\DVDFab\Temp\Clone\MICHAEL CLAYTON\.iso) started
02:33:18: Task_2 failed! Error=116
02:33:19: Process failed!

Has anyone else had this problem with the 820A or know of a solution? Any help would be greatly appreciated. This drive has no problem at all writing single layer disks. Thanks in advance.