HappyNot

I replaced the SATA cable and have since burned several DVDs with no problems. Solely for the benefit of future searchers, here is some of the text from the above pop-up message: I/O Error! ScsiStatus: 0x02 Interpretation: Check Condition SK Interpretation: Hardware Error ASC/ASCQ Interpretation: Logical Unit Communication CRC Error (ULTRA-DMA/32)

Thanks for your answer. Now that you mention it, in the past three months my drive "disappeared" a couple of times, which I remedied by unplugging and replugging them. (I'll note that my latest burn attempts have failed in the burning phase, hanging my computer.) 1. What are the odds that the problem is with the cables instead of the drive or computer connections? (Yes, obviously it's worth trying the cables first regardless.) 2. Which cable is more likely at fault? (data/power) 3. Given your diagnosis and the fact that the disks passed a CRC file-comparison, can I be reasonably confident that the disks are fine?

Here's the pop-up message I get:

After 100s of burns (same brand DVD) with no problems, my last three burns have suddenly all failed at the verification stage. (The only remotely possible change I can think of is that I have very recently burned a DL for the first time). When I then close ImgBurn and open/close the DVD tray, the DVDs work fine and a file comparison informs me all files are identical So, 1. How do I solve this 2. Is there any reason to worry about those 3 DVDs? Thanks. Log: I 03:56:13 ImgBurn Version 2.5.8.0 started! I 03:56:13 Microsoft Windows Vista Home Premium Edition (6.0, Build 6002 : Service Pack 2) I 03:56:13 Total Physical Memory: 1,964,688 KiB - Available: 813,120 KiB I 03:56:13 Initialising SPTI... I 03:56:13 Searching for SCSI / ATAPI devices... I 03:56:14 -> Drive 1 - Info: Optiarc DVD RW AD-7280S 1.01 (D:) (ATA) I 03:56:14 Found 1 DVD±RW/RAM! I 03:57:11 Operation Started! I 03:57:11 Building Image Tree... I 03:57:11 Checking Directory Depth... I 03:57:11 Calculating Totals... I 03:57:11 Preparing Image... I 03:57:11 Checking Path Length... I 03:57:11 Contents: 5 Files, 0 Folders I 03:57:11 Content Type: DivX Video I 03:57:11 Data Type: MODE1/2048 I 03:57:11 File System(s): ISO9660, Joliet, UDF (1.02) I 03:57:11 Volume Label: X_XXX_XXXX_XXXXXX_X I 03:57:11 Size: 4,671,060,185 bytes I 03:57:11 Sectors: 2,280,794 I 03:57:11 Image Size: 4,671,635,456 bytes I 03:57:11 Image Sectors: 2,281,072 I 03:57:11 Operation Successfully Completed! - Duration: 00:00:00 I 03:57:13 Operation Started! I 03:57:13 Building Image Tree... I 03:57:13 Checking Directory Depth... I 03:57:13 Calculating Totals... I 03:57:13 Preparing Image... I 03:57:13 Checking Path Length... I 03:57:13 Contents: 5 Files, 0 Folders I 03:57:13 Content Type: DivX Video I 03:57:13 Data Type: MODE1/2048 I 03:57:13 File System(s): ISO9660, Joliet, UDF (1.02) I 03:57:13 Volume Label: X_XXX_XXXX_XXXXXX_X I 03:57:13 Size: 4,671,060,185 bytes I 03:57:13 Sectors: 2,280,794 I 03:57:13 Image Size: 4,671,635,456 bytes I 03:57:13 Image Sectors: 2,281,072 I 03:57:15 Operation Successfully Completed! - Duration: 00:00:01 I 03:57:15 Operation Started! I 03:57:15 Source File: -==/\/[bUILD IMAGE]\/\==- I 03:57:15 Source File Sectors: 2,281,072 (MODE1/2048) I 03:57:15 Source File Size: 4,671,635,456 bytes I 03:57:15 Source File Volume Identifier: X_XXX_XXXX_XXXXXX_X I 03:57:15 Source File Volume Set Identifier: 44E61F260022CE6A I 03:57:15 Source File Application Identifier: ImgBurn v2.5.8.0 - The Ultimate Image Burner! I 03:57:15 Source File Implementation Identifier: ImgBurn I 03:57:15 Source File File System(s): ISO9660, Joliet, UDF (1.02) I 03:57:15 Destination Device: [1:0:0] Optiarc DVD RW AD-7280S 1.01 (D:) (ATA) I 03:57:15 Destination Media Type: DVD-R (Disc ID: CMC MAG. AM3) I 03:57:15 Destination Media Supported Write Speeds: 4x, 6x, 8x, 12x, 16x I 03:57:15 Destination Media Sectors: 2,298,496 I 03:57:15 Write Mode: DVD I 03:57:15 Write Type: DAO I 03:57:15 Write Speed: 12x I 03:57:15 Link Size: Auto I 03:57:15 Lock Volume: Yes I 03:57:15 Test Mode: No I 03:57:15 OPC: No I 03:57:15 BURN-Proof: Enabled I 03:57:15 Write Speed Successfully Set! - Effective: 16,620 KB/s (12x) I 03:57:15 Filling Buffer... (40 MiB) I 03:57:16 Writing LeadIn... I 03:57:41 Writing Session 1 of 1... (1 Track, LBA: 0 - 2281071) I 03:57:41 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2281071) I 04:04:11 Synchronising Cache... I 04:04:16 Exporting Graph Data... I 04:04:16 Graph Data File: C:\Users\geronimo\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-7280S_1.01_SUNDAY-JULY-06-2014_0404_CMC_MAG._AM3_12x.ibg I 04:04:16 Export Successfully Completed! I 04:04:16 Operation Successfully Completed! - Duration: 00:07:01 I 04:04:16 Average Write Rate: 11,697 KiB/s (8.6x) - Maximum Write Rate: 17,921 KiB/s (13.2x) I 04:04:16 Cycling Tray before Verify... W 04:04:25 Waiting for device to become ready... I 04:04:34 Device Ready! I 04:04:35 Operation Started! I 04:04:35 Source Device: [1:0:0] Optiarc DVD RW AD-7280S 1.01 (D:) (ATA) I 04:04:35 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: CMC MAG. AM3) I 04:04:35 Source Media Supported Read Speeds: 5x, 8x, 12x, 16x I 04:04:35 Source Media Supported Write Speeds: 4x, 6x, 8x, 12x, 16x I 04:04:35 Source Media Sectors: 2,281,072 (Track Path: PTP) I 04:04:35 Source Media Size: 4,671,635,456 bytes I 04:04:35 Image File: -==/\/[bUILD IMAGE]\/\==- I 04:04:35 Image File Sectors: 2,281,072 (MODE1/2048) I 04:04:35 Image File Size: 4,671,635,456 bytes I 04:04:35 Image File Volume Identifier: X_XXX_XXXX_XXXXXX_X I 04:04:35 Image File Volume Set Identifier: 44E61F260022CE6A I 04:04:35 Image File Application Identifier: ImgBurn v2.5.8.0 - The Ultimate Image Burner! I 04:04:35 Image File Implementation Identifier: ImgBurn I 04:04:35 Image File File System(s): ISO9660, Joliet, UDF (1.02) I 04:04:35 Read Speed (Data/Audio): MAX / MAX I 04:04:36 Read Speed - Effective: 6.6x - 16x I 04:04:37 Verifying Session 1 of 1... (1 Track, LBA: 0 - 2281071) I 04:04:37 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 2281071) W 04:04:38 Failed to Read Sectors 1376 - 1407 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:39 Failed to Read Sectors 1696 - 1727 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:41 Failed to Read Sectors 5024 - 5055 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:42 Failed to Read Sectors 5312 - 5343 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:42 Failed to Read Sectors 6080 - 6111 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:42 Failed to Read Sectors 6464 - 6495 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:44 Failed to Read Sectors 8832 - 8863 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:44 Failed to Read Sectors 9088 - 9119 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:44 Failed to Read Sectors 9152 - 9183 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:44 Failed to Read Sectors 9280 - 9311 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:44 Failed to Read Sectors 9408 - 9439 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:45 Failed to Read Sectors 11360 - 11391 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:45 Failed to Read Sectors 12224 - 12255 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:45 Failed to Read Sectors 12416 - 12447 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:46 Failed to Read Sectors 13824 - 13855 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:46 Failed to Read Sectors 14272 - 14303 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:46 Failed to Read Sectors 15008 - 15039 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:47 Failed to Read Sectors 15168 - 15199 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:47 Failed to Read Sectors 15456 - 15487 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:47 Failed to Read Sector 15477 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) W 04:04:47 Sector 15477 maps to File: \BLABLABLA.avi E 04:10:16 Failed to Read Sector 15477 - Reason: Logical Unit Communication CRC Error (ULTRA-DMA/32) E 04:10:16 Sector 15477 maps to File: \BLABLABLA.avi E 04:10:17 Failed to Verify Sectors! I 04:10:18 Exporting Graph Data... I 04:10:18 Graph Data File: C:\Users\geronimo\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-7280S_1.01_SUNDAY-JULY-06-2014_0404_CMC_MAG._AM3_12x.ibg I 04:10:18 Export Successfully Completed! E 04:10:18 Operation Failed! - Duration: 00:05:41 I 04:10:18 Average Verify Rate: 91 KiB/s (0.1x) - Maximum Verify Rate: 4,941 KiB/s (3.7x) [Apologies if this is addressed elsewhere; I didn't find it.]