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Had forgotten to try your first suggestion of burning at a lower speed! Tried writing again at 4x. It worked! Thanks a lot!! But does this mean I will not be able to write at a higher speed any more?? #39;(

Thanks for replying mmalves. I did what you said. I got a lens cleaning disc and cleaned. But the problem persists. The log this time was - I 19:11:10 ImgBurn Version 2.5.6.0 started! I 19:11:10 Microsoft Windows 7 Home Basic x64 Edition (6.1, Build 7601 : Service Pack 1) I 19:11:10 Total Physical Memory: 4,160,544 KB - Available: 2,297,876 KB I 19:11:10 Initialising SPTI... I 19:11:10 Searching for SCSI / ATAPI devices... I 19:11:11 -> Drive 1 - Info: Optiarc DVD RW AD-7700S 1.70 (F:) (ATAPI) I 19:11:11 Found 1 DVD±RW/RAM! I 19:11:34 Operation Started! I 19:11:34 Building Image Tree... I 19:11:34 Calculating Totals... I 19:11:34 Preparing Image... I 19:11:35 Contents: 1 File, 0 Folders I 19:11:35 Content Type: Data I 19:11:35 Data Type: MODE1/2048 I 19:11:35 File System(s): UDF (1.02) I 19:11:35 Volume Label: [Not Configured] I 19:11:35 Size: 4,698,669,056 bytes I 19:11:35 Sectors: 2,294,272 I 19:11:35 Image Size: 4,699,226,112 bytes I 19:11:35 Image Sectors: 2,294,544 I 19:11:35 Operation Successfully Completed! - Duration: 00:00:00 I 19:11:56 Operation Started! I 19:11:56 Building Image Tree... I 19:12:02 Calculating Totals... I 19:12:02 Preparing Image... I 19:12:02 Contents: 1 File, 0 Folders I 19:12:03 Content Type: Data I 19:12:03 Data Type: MODE1/2048 I 19:12:03 File System(s): UDF (1.02) I 19:12:03 Volume Label: D1 - NFS P1 I 19:12:03 Size: 4,698,669,056 bytes I 19:12:03 Sectors: 2,294,272 I 19:12:03 Image Size: 4,699,226,112 bytes I 19:12:03 Image Sectors: 2,294,544 I 19:12:16 Operation Successfully Completed! - Duration: 00:00:19 I 19:12:16 Operation Started! I 19:12:16 Source File: -==/\/[bUILD IMAGE]\/\==- I 19:12:16 Source File Sectors: 2,294,544 (MODE1/2048) I 19:12:16 Source File Size: 4,699,226,112 bytes I 19:12:16 Source File Volume Identifier: D1 - NFS P1 I 19:12:16 Source File Volume Set Identifier: 3F55997A00230306 I 19:12:16 Source File Application Identifier: ImgBurn v2.5.6.0 I 19:12:16 Source File Implementation Identifier: ImgBurn I 19:12:16 Source File File System(s): UDF (1.02) I 19:12:16 Destination Device: [0:1:0] Optiarc DVD RW AD-7700S 1.70 (F:) (ATAPI) I 19:12:16 Destination Media Type: DVD-R (Disc ID: MBI 01RG40) I 19:12:16 Destination Media Supported Write Speeds: 2x, 4x, 6x, 8x I 19:12:16 Destination Media Sectors: 2,298,496 I 19:12:16 Write Mode: DVD I 19:12:16 Write Type: DAO I 19:12:16 Write Speed: MAX I 19:12:16 Link Size: Auto I 19:12:16 Lock Volume: Yes I 19:12:16 Test Mode: No I 19:12:16 OPC: No I 19:12:16 BURN-Proof: Enabled I 19:12:16 Write Speed Successfully Set! - Effective: 11,080 KB/s (8x) I 19:12:17 Filling Buffer... (40 MB) I 19:12:18 Writing LeadIn... I 19:13:03 Writing Session 1 of 1... (1 Track, LBA: 0 - 2294543) I 19:13:03 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2294543) W 19:26:12 Failed to Write Sectors 1967008 - 1967039 - Reason: Write Error W 19:26:12 Retrying (1 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (2 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (3 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (4 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (5 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (6 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (7 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (8 of 20)... W 19:26:12 Retry Failed - Reason: Write Error W 19:26:12 Retrying (9 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (10 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (11 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (12 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (13 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (14 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (15 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (16 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (17 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (18 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (19 of 20)... W 19:26:13 Retry Failed - Reason: Write Error W 19:26:13 Retrying (20 of 20)... W 19:26:13 Retry Failed - Reason: Write Error E 19:26:42 Failed to Write Sectors 1967008 - 1967039 - Reason: Write Error I 19:26:42 Synchronising Cache... E 19:26:50 Failed to Write Image! I 19:26:50 Exporting Graph Data... I 19:26:50 Graph Data File: C:\Users\Siteregn\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-7700S_1.70_21-OCTOBER-2011_PM_07-12_MBI_01RG40_MAX.ibg I 19:26:50 Export Successfully Completed! E 19:26:50 Operation Failed! - Duration: 00:14:34 I 19:26:50 Average Write Rate: 4,803 KB/s (3.5x) - Maximum Write Rate: 10,490 KB/s (7.6x) I see in the log this line - E 19:26:42 Failed to Write Sectors 1967008 - 1967039 - Reason: Write Error In the previous log that I posted the sectors that failed to write were - W 03:16:08 Failed to Write Sectors 690880 - 690911 - Reason: Write Error I had to scrapped around 20-25 DVD because of this error. Surely so many discs cannot be defective, as I have tried discs of different brands & batches. I also tried using Nero & Roxio (giving me similar errors...) before trying ImgBurn. Is there any way I can find out if this is happening due to a problem with the DVD writer?

Hi, I have been burning DVD with ImgBurn for some time now. In the beginning a few burns were good. But now all the burns are failing. I do not know the reason and cannot interpret the log. I have tried changing the DVD brand, but no use.. or could there be a problem with my DVD-writer? Anyways, here is the log, pls let me know what I can do... I 03:10:04 ImgBurn Version 2.5.6.0 started! I 03:10:04 Microsoft Windows 7 Home Basic x64 Edition (6.1, Build 7601 : Service Pack 1) I 03:10:04 Total Physical Memory: 4,160,544 KB - Available: 2,800,196 KB I 03:10:04 Initialising SPTI... E 03:10:04 Failed to check for ImgBurn update! I 03:10:04 Searching for SCSI / ATAPI devices... I 03:10:04 -> Drive 1 - Info: Optiarc DVD RW AD-7700S 1.70 (F:) (ATAPI) I 03:10:04 Found 1 DVD±RW/RAM! I 03:10:45 Operation Started! I 03:10:45 Source File: D:\My Files\Dumps\Dump 14.iso I 03:10:45 Source File Sectors: 2,253,230 (MODE1/2048) I 03:10:45 Source File Size: 4,614,615,040 bytes I 03:10:45 Source File Volume Identifier: 20110919_2024 I 03:10:45 Source File Volume Set Identifier: 20110919_2024 I 03:10:45 Source File File System(s): ISO9660, Joliet I 03:10:45 Destination Device: [0:1:0] Optiarc DVD RW AD-7700S 1.70 (F:) (ATAPI) I 03:10:45 Destination Media Type: DVD-R (Disc ID: MBI 01RG40) I 03:10:45 Destination Media Supported Write Speeds: 2x, 4x, 6x, 8x I 03:10:45 Destination Media Sectors: 2,297,888 I 03:10:45 Write Mode: DVD I 03:10:45 Write Type: DAO I 03:10:45 Write Speed: MAX I 03:10:45 Link Size: Auto I 03:10:45 Lock Volume: Yes I 03:10:45 Test Mode: No I 03:10:45 OPC: No I 03:10:45 BURN-Proof: Enabled I 03:10:45 Write Speed Successfully Set! - Effective: 11,080 KB/s (8x) I 03:10:46 Filling Buffer... (40 MB) I 03:10:48 Writing LeadIn... I 03:11:33 Writing Session 1 of 1... (1 Track, LBA: 0 - 2253229) I 03:11:33 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2253229) W 03:16:08 Failed to Write Sectors 690880 - 690911 - Reason: Write Error W 03:16:08 Retrying (1 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (2 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (3 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (4 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (5 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (6 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (7 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (8 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (9 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (10 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (11 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (12 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (13 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:08 Retrying (14 of 20)... W 03:16:08 Retry Failed - Reason: Write Error W 03:16:09 Retrying (15 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:16:09 Retrying (16 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:16:09 Retrying (17 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:16:09 Retrying (18 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:16:09 Retrying (19 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:16:09 Retrying (20 of 20)... W 03:16:09 Retry Failed - Reason: Write Error W 03:18:09 Retrying (21)... W 03:18:09 Retry Failed - Reason: Write Error W 03:18:12 Retrying (22)... W 03:18:12 Retry Failed - Reason: Write Error E 03:18:14 Failed to Write Sectors 690880 - 690911 - Reason: Write Error I 03:18:15 Synchronising Cache... E 03:18:20 Failed to Write Image! I 03:18:20 Exporting Graph Data... I 03:18:20 Graph Data File: C:\Users\Siteregn\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_DVD_RW_AD-7700S_1.70_21-OCTOBER-2011_AM_03-10_MBI_01RG40_MAX.ibg I 03:18:20 Export Successfully Completed! E 03:18:21 Operation Failed! - Duration: 00:07:35 I 03:18:21 Average Write Rate: 3,445 KB/s (2.5x) - Maximum Write Rate: 7,278 KB/s (5.3x) W 03:19:05 Device Arrival Detected! I 03:19:05 Searching for SCSI / ATAPI devices... I 03:19:06 -> Drive 1 - Info: Optiarc DVD RW AD-7700S 1.70 (F:) (ATAPI) I 03:19:06 Found 1 DVD±RW/RAM! This time I was burning an ISO image. But I have faced the same problem with any other kind of data too.. Let me know the details required for troubleshooting, will provide the same... Thanks!