Tried to burn an iso today and was surprised that it didn't work. ImgBurn has been pretty much fool proof for me since I started using it, and that's been a while.
I've tried three different iso's with the same result, ImgBurn just gets stuck on Synchronising Cache. Few days ago I did do a clean install of Win 7 Ultimate x64, before I was on XP Pro x64. I'm no expert but that can't be a coincidence.
Checked for new firmware for my iHAS324, couldn't find anything on Lite-On global.
Here's the log file, I pressed F8 after is gets stuck and also again after I hit cancel.
I 09:53:25 ImgBurn Version 2.5.0.0 started!
I 09:53:25 Microsoft Windows 7 Ultimate x64 Edition (6.1, Build 7600)
I 09:53:25 Total Physical Memory: 4,185,984 KB - Available: 3,172,260 KB
W 09:53:25 SPTD can have a detrimental effect on drive performance.
I 09:53:25 Initialising SPTI...
I 09:53:25 Searching for SCSI / ATAPI devices...
I 09:53:30 Found 1 DVD±RW/RAM and 1 BD-ROM/HD DVD-ROM!
I 09:53:45 Operation Started!
I 09:53:45 Source File: C:\Users\*****\Downloads\******.iso
I 09:53:45 Source File Sectors: 1,522,144 (MODE1/2048)
I 09:53:45 Source File Size: 3,117,350,912 bytes
I 09:53:45 Source File Volume Identifier: bie764
I 09:53:45 Source File File System(s): ISO9660 (Bootable), Joliet
I 09:53:45 Destination Device: [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:53:45 Destination Media Type: DVD+R (Disc ID: MCC-004-00) (Speeds: 6x, 8x, 12x, 16x)
I 09:53:45 Destination Media Sectors: 2,295,104
I 09:53:45 Write Mode: DVD
I 09:53:45 Write Type: DAO
I 09:53:45 Write Speed: MAX
I 09:53:45 DVD+R Reserve Track: No
I 09:53:45 Link Size: Auto
I 09:53:45 Lock Volume: Yes
I 09:53:45 Test Mode: No
I 09:53:45 OPC: No
I 09:53:45 BURN-Proof: Enabled
I 09:53:45 Book Type Setting: DVD-ROM
I 09:53:45 Advanced Settings - Force HT: No, Online HT: No, OverSpeed: No, SmartBurn: Yes
I 09:53:45 Filling Buffer... (40 MB)
I 09:53:47 Writing LeadIn...
I 09:54:06 Writing Session 1 of 1... (1 Track, LBA: 0 - 1522143)
I 09:54:06 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1522143)
I 09:57:52 Synchronising Cache...
W 09:58:46 I/O Interface 'Debug Mode' has been Enabled!
I 09:58:46 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:46 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:46 CDB Interpretation: Read Capacity
E 09:58:46 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:46 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:47 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:47 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:47 CDB Interpretation: Read Capacity
E 09:58:47 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:48 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:49 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:49 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:49 CDB Interpretation: Read Capacity
E 09:58:49 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:49 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:50 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:50 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:50 CDB Interpretation: Read Capacity
E 09:58:50 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:50 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:51 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:51 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:51 CDB Interpretation: Read Capacity
E 09:58:51 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:51 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:52 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:52 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:52 CDB Interpretation: Read Capacity
E 09:58:52 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:52 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:53 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:53 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:53 CDB Interpretation: Read Capacity
E 09:58:53 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:53 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:54 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:54 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:54 CDB Interpretation: Read Capacity
E 09:58:54 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:54 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:55 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:55 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:55 CDB Interpretation: Read Capacity
E 09:58:55 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:55 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:56 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:56 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:56 CDB Interpretation: Read Capacity
E 09:58:56 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:56 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:57 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:57 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:57 CDB Interpretation: Read Capacity
E 09:58:57 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:57 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 09:58:58 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 09:58:58 CDB: 25 00 00 00 00 00 00 00 00 00
I 09:58:58 CDB Interpretation: Read Capacity
E 09:58:58 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 09:58:58 SENSE Interpretation: Logical Unit not ready, Long Write in progress
W 09:58:59 I/O Interface 'Debug Mode' has been Disabled!
I 10:00:59 Abort Request Acknowledged
W 10:01:02 I/O Interface 'Debug Mode' has been Enabled!
I 10:01:03 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 10:01:03 CDB: 25 00 00 00 00 00 00 00 00 00
I 10:01:03 CDB Interpretation: Read Capacity
E 10:01:03 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 10:01:03 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 10:01:04 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 10:01:04 CDB: 25 00 00 00 00 00 00 00 00 00
I 10:01:04 CDB Interpretation: Read Capacity
E 10:01:04 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 10:01:04 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 10:01:05 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 10:01:05 CDB: 25 00 00 00 00 00 00 00 00 00
I 10:01:05 CDB Interpretation: Read Capacity
E 10:01:05 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 10:01:05 SENSE Interpretation: Logical Unit not ready, Long Write in progress
I 10:01:06 [2:2:0] ATAPI iHAS324 A BL17 (D:) (RAID)
I 10:01:06 CDB: 25 00 00 00 00 00 00 00 00 00
I 10:01:06 CDB Interpretation: Read Capacity
E 10:01:06 SENSE: 70 00 02 00 00 00 00 0A 00 00 00 00 04 08 00 00 00 00
E 10:01:06 SENSE Interpretation: Logical Unit not ready, Long Write in progress
W 10:01:06 I/O Interface 'Debug Mode' has been Disabled!
After a restart I tried to burn the same image this log came from with Win 7's integrated image burner and much to my sadness......it worked.