I have a HP DVD Writer 640c which burns CDs and single layer DVDs with no issues but I am not able to burn dual layer DVDs. Per HP's product description, it is supposed to do so.
I tackled this problem about a year ago without success. At the time, when I went to HP's web site it appeared I was using the most current firmware (version JS04). Today, when I selected firmware for 640c, it forwarded me to the 640i. It was newer firmware so I decided to give it a try (version QS12). It installed fine but I still can not burn dual layer DVDs. I am using Verbatim DVD+R DL 8x media. I have also tried to burn to dual layer DVDs using Windows and Ulead Burn Now without success. My log for ImgBurn is as follows. Thanks in advance for your help.
I 09:44:36 ImgBurn Version 2.5.0.0 started!
I 09:44:36 Microsoft Windows 7 Professional Edition (6.1, Build 7601 : Service Pack 1)
I 09:44:36 Total Physical Memory: 3,275,960 KB - Available: 1,839,820 KB
I 09:44:36 Initialising SPTI...
I 09:44:36 Searching for SCSI / ATAPI devices...
I 09:44:36 Found 1 DVD-ROM and 1 DVD±RW!
I 09:45:13 Operation Started!
I 09:45:13 Building Image Tree...
I 09:45:13 Checking Directory Depth...
I 09:45:13 Calculating Totals...
I 09:45:13 Preparing Image...
I 09:45:13 Checking Path Length...
I 09:45:13 Contents: 4 Files, 0 Folders
I 09:45:13 Content Type: Data
I 09:45:13 Data Type: MODE1/2048
I 09:45:13 File System(s): ISO9660, Joliet
I 09:45:13 Volume Label: [Not Configured]
I 09:45:13 Size: 5,332,488,349 bytes
I 09:45:13 Sectors: 2,603,755
I 09:45:13 Image Size: 5,332,566,016 bytes
I 09:45:13 Image Sectors: 2,603,792
I 09:45:13 Operation Successfully Completed! - Duration: 00:00:00
I 09:45:19 Operation Started!
I 09:45:19 Building Image Tree...
I 09:45:31 Checking Directory Depth...
I 09:45:31 Calculating Totals...
I 09:45:31 Preparing Image...
I 09:45:31 Checking Path Length...
I 09:45:31 Contents: 4 Files, 0 Folders
I 09:45:31 Content Type: Data
I 09:45:31 Data Type: MODE1/2048
I 09:45:31 File System(s): ISO9660, Joliet
I 09:45:31 Volume Label: Dad's Interview
I 09:45:31 Size: 5,332,488,349 bytes
I 09:45:31 Sectors: 2,603,755
I 09:45:31 Image Size: 5,332,566,016 bytes
I 09:45:31 Image Sectors: 2,603,792
I 09:45:33 Operation Successfully Completed! - Duration: 00:00:13
I 09:45:33 Operation Started!
I 09:45:33 Source File: -==/\/[bUILD IMAGE]\/\==-
I 09:45:33 Source File Sectors: 2,603,792 (MODE1/2048)
I 09:45:33 Source File Size: 5,332,566,016 bytes
I 09:45:33 Source File Volume Identifier: Dad's Interview
I 09:45:33 Source File Application Identifier: ImgBurn v2.5.0.0 - The Ultimate Image Burner!
I 09:45:33 Source File Implementation Identifier: ImgBurn v2.5.0.0
I 09:45:33 Source File File System(s): ISO9660, Joliet
I 09:45:33 Destination Device: [0:1:0] HP DVD Writer 640c QS12 (G:) (ATA)
I 09:45:33 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 2.4x)
I 09:45:33 Destination Media Sectors: 4,173,824
I 09:45:33 Write Mode: DVD
I 09:45:33 Write Type: DAO
I 09:45:33 Write Speed: MAX
I 09:45:33 Link Size: Auto
I 09:45:33 Lock Volume: Yes
I 09:45:33 Test Mode: No
I 09:45:33 OPC: No
I 09:45:33 BURN-Proof: Enabled
I 09:45:33 Optimal L0 Data Zone Capacity: 1,301,904
I 09:45:33 Optimal L0 Data Zone Method: ECC Block Boundary
I 09:45:33 Set L0 Data Zone Capacity Succeeded!
I 09:45:34 Filling Buffer... (40 MB)
I 09:45:35 Writing LeadIn...
W 09:46:23 Failed to Write Sectors 0 - 31 - Reason: Session Fixation Error Writing Lead In
W 09:46:23 Retrying (1 of 20)...
W 09:47:09 Retry Failed - Reason: Session Fixation Error Writing Lead In
W 09:47:09 Retrying (2 of 20)...
I 09:47:15 Abort Request Acknowledged
W 09:47:55 Retry Failed - Reason: Session Fixation Error Writing Lead In
E 09:47:55 Failed to Write Sectors 0 - 31 - Reason: Session Fixation Error Writing Lead In
I 09:47:55 Synchronising Cache...
W 09:48:03 User opted to skip the 'Close Track/Session/Disc' functions.
E 09:48:03 Failed to Write Image!
E 09:48:03 Operation Failed! - Duration: 00:02:29
I 09:48:03 Average Write Rate: N/A - Maximum Write Rate: N/A