Here is the second type of log file I get where it claims to fail to write during the lead-in. It doesn't seem to have actually burned anything because the disk still shows up as a blank disk if I reinsert it.

3/10/2008 8:13:31 PM info ******************** Report session closed *********************
3/10/2008 8:13:15 PM error Write error at 0 (16) - Code 03 72 01 [Close session error while writing leadin area]
3/10/2008 8:12:09 PM info Write started 3982320 sectors to write
3/10/2008 8:12:09 PM info Layer change set to LBA 2013184 (3.84 Gb.)
3/10/2008 8:12:09 PM info Writing speed requested x2.4, effective x2.4
3/10/2008 8:12:09 PM info layer break set by filesystem builder at 2013184
3/10/2008 8:12:09 PM info Available write speed: 2.4x
3/10/2008 8:12:09 PM info Media ID: MKM-001-00
3/10/2008 8:12:09 PM info Media type: Dual Layer DVD+R
3/10/2008 8:12:09 PM info Ultra DMA mode 2 (ATA33)
3/10/2008 8:12:07 PM info Optimal Layer Break is in cell 33, around 00:00:00
3/10/2008 8:12:06 PM info Scanned files #13, folder #2 - total size 8154654720 b. (7.59 Gb.)
3/10/2008 8:12:06 PM info Inserted media type : DL DVD+R
3/10/2008 8:12:06 PM info Write started
3/10/2008 8:12:05 PM info New media inserted. Burning layer is ready to write
3/10/2008 8:12:03 PM info Compatible media types : DVD-R, DVD-RW Seq., DVD-RW RO, DVD+R, DVD+RW, CD-R, CD-RW, DL DVD+R, DL DVD-R
3/10/2008 8:12:03 PM info New Drive selected : 1:1:0 - BENQ DVD LS DW1655 BCGB [F] (Ide)
3/10/2008 8:11:59 PM info New media inserted. Burning layer is ready to write
3/10/2008 8:11:07 PM info Media removed. Burning layer not ready to write
3/10/2008 8:10:24 PM info New media inserted. Burning layer is ready to write
3/10/2008 8:10:19 PM info Current Drive selected : 1:1:0 - BENQ DVD LS DW1655 BCGB [F] (Ide)
3/10/2008 8:10:19 PM info Using Patin-Couffin driver Version 1.37, Internal revision 37 - Async. Access mode
3/10/2008 8:10:19 PM info User default language : 1033 (0x0409h) - English (United States)
3/10/2008 8:10:19 PM info System default language : 1033 (0x0409h) - English (United States)
3/10/2008 8:10:19 PM info DLL Version 2.1.7.338
3/10/2008 8:10:19 PM info DLL C:\Program Files\DVDFab Gold 4\vso_hwe.dll
3/10/2008 8:10:19 PM info Version 4, 1, 0, 2
3/10/2008 8:10:19 PM info ExeName : "C:\Program Files\DVDFab Gold 4\DVDFabGold.exe"
3/10/2008 8:10:19 PM info OS : Microsoft Windows XP Personal Service Pack 2 (Build 2600)
3/10/2008 8:10:19 PM info ******************** Report session started ********************