Hi, i starter burning a dvd-r dl at 4x and finished without problems, then when verifying at 50% show I/o error and cant continue. this is the log:
I 17:58:43 ImgBurn Version 2.5.5.0 started!
I 17:58:43 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 17:58:43 Total Physical Memory: 2.095.208 KB - Available: 1.265.088 KB
W 17:58:43 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 17:58:43 Initialising SPTI...
I 17:58:43 Searching for SCSI / ATAPI devices...
I 17:58:43 -> Drive 1 - Info: HL-DT-ST DVDRAM GH22NS50 TN02 (E:) (ATA)
I 17:58:43 -> Drive 2 - Info: TILUX BC9EZ8HIB81 1.03 (G:) (SCSI)
I 17:58:43 Found 1 DVD±RW/RAM and 1 BD-ROM/HD DVD-ROM!
I 18:01:17 Operation Started!
I 18:01:17 Source File: C:\Documents and Settings\Everton\Meus documentos\Downloads\Gears Of War\1\Gears of War RAZOR.iso
I 18:01:17 Source File Sectors: 3.885.552 (MODE1/2048)
I 18:01:17 Source File Size: 7.957.610.496 bytes
I 18:01:17 Source File Volume Identifier: GEARSOFWAR
I 18:01:17 Source File Volume Set Identifier: 473104CC0000B5F2
I 18:01:17 Source File Application Identifier: NERO BURNING ROM
I 18:01:17 Source File Implementation Identifier: Nero
I 18:01:17 Source File File System(s): ISO9660; Joliet; UDF (1.02)
I 18:01:17 Destination Device: [1:0:0] HL-DT-ST DVDRAM GH22NS50 TN02 (E:) (ATA)
I 18:01:17 Destination Media Type: DVD+R DL (Disc ID: CMC MAG-D02-00) (Speeds: 2,4x; 4x; 6x; 8x)
I 18:01:17 Destination Media Sectors: 4.173.824
I 18:01:17 Write Mode: DVD
I 18:01:17 Write Type: DAO
I 18:01:17 Write Speed: 4x
I 18:01:17 Link Size: Auto
I 18:01:17 Lock Volume: Yes
I 18:01:17 Test Mode: No
I 18:01:17 OPC: No
I 18:01:17 BURN-Proof: Enabled
I 18:01:18 Write Speed Successfully Set! - Effective: 5.540 KB/s (4x)
I 18:01:18 Book Type Setting: DVD-ROM
I 18:01:18 Optimal L0 Data Zone Capacity: 1.942.784
I 18:01:18 Optimal L0 Data Zone Method: ECC Block Boundary
I 18:02:01 Set L0 Data Zone Capacity Succeeded!
I 18:02:36 Filling Buffer... (40 MB)
I 18:02:36 Writing LeadIn...
I 18:02:54 Writing Session 1 of 1... (1 Track, LBA: 0 - 3885551)
I 18:02:54 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 3885551)
I 18:02:54 Writing Layer 0... (LBA: 0 - 1942783)
I 18:15:02 Writing Layer 1... (LBA: 1942784 - 3885551)
I 18:27:11 Synchronising Cache...
I 18:27:12 Closing Track...
I 18:27:16 Finalising Disc...
I 18:28:08 Exporting Graph Data...
I 18:28:08 Graph Data File: C:\Documents and Settings\Everton\Dados de aplicativos\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH22NS50_TN02_DOMINGO-8-DE-MAIO-DE-2011_18-01_CMC_MAG-D02-00_4x.ibg
I 18:28:08 Export Successfully Completed!
I 18:28:08 Operation Successfully Completed! - Duration: 00:26:50
I 18:28:08 Average Write Rate: 5.337 KB/s (3.9x) - Maximum Write Rate: 5.671 KB/s (4.1x)
I 18:28:08 Cycling Tray before Verify...
W 18:28:17 Waiting for device to become ready...
I 18:28:34 Device Ready!
I 18:28:37 Operation Started!
I 18:28:37 Source Device: [1:0:0] HL-DT-ST DVDRAM GH22NS50 TN02 (E:) (ATA)
I 18:28:37 Source Media Type: DVD+R DL (Book Type: DVD-ROM) (Disc ID: CMC MAG-D02-00) (Speeds: 2,4x; 4x; 6x; 8x)
I 18:28:37 Image File: C:\Documents and Settings\Everton\Meus documentos\Downloads\Gears Of War\1\Gears of War RAZOR.iso
I 18:28:37 Image File Sectors: 3.885.552 (MODE1/2048)
I 18:28:37 Image File Size: 7.957.610.496 bytes
I 18:28:37 Image File Volume Identifier: GEARSOFWAR
I 18:28:37 Image File Volume Set Identifier: 473104CC0000B5F2
I 18:28:37 Image File Application Identifier: NERO BURNING ROM
I 18:28:37 Image File Implementation Identifier: Nero
I 18:28:37 Image File File System(s): ISO9660; Joliet; UDF (1.02)
I 18:28:37 Read Speed (Data/Audio): MAX / MAX
I 18:28:37 Verifying Session 1 of 1... (1 Track, LBA: 0 - 3885551)
I 18:28:37 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 3885551)
I 18:28:37 Verifying Layer 0... (LBA: 0 - 1942783)
I 18:34:13 Verifying Layer 1... (LBA: 1942784 - 3885551)
W 18:34:28 Failed to Read Sector 1942800 - Reason: Unrecovered Read Error
W 18:34:28 Sector 1942800 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
W 18:34:49 Retrying (1)...
W 18:34:55 Retry Failed - Reason: Unrecovered Read Error
W 18:34:57 Failed to Read Sector 1942800 - Reason: Unrecovered Read Error
W 18:34:57 Sector 1942800 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
W 18:35:04 Failed to Read Sector 1942801 - Reason: Unrecovered Read Error
W 18:35:04 Sector 1942801 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
W 18:39:32 Failed to Read Sector 1942801 - Reason: Unrecovered Read Error
W 18:39:32 Sector 1942801 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
W 18:39:40 Failed to Read Sector 1942802 - Reason: Unrecovered Read Error
W 18:39:40 Sector 1942802 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
E 18:43:46 Failed to Read Sector 1942802 - Reason: Unrecovered Read Error
E 18:43:46 Sector 1942802 maps to File: \program files\Microsoft Games\Gears of War\WarGame\CookedPC\Maps\SP_EphyraStreets\SP_EphryaStreets_S18.war.comp
E 18:43:46 Failed to Verify Sectors!
I 18:43:47 Exporting Graph Data...
I 18:43:47 Graph Data File: C:\Documents and Settings\Everton\Dados de aplicativos\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH22NS50_TN02_DOMINGO-8-DE-MAIO-DE-2011_18-01_CMC_MAG-D02-00_4x.ibg
I 18:43:47 Export Successfully Completed!
E 18:43:47 Operation Failed! - Duration: 00:15:09
I 18:43:47 Average Verify Rate: 4.274 KB/s (3.1x) - Maximum Verify Rate: 16.689 KB/s (12.0x)
I 18:44:49 Close Request Acknowledged
I 18:44:49 Closing Down...
I 18:44:49 Shutting down SPTI...
I 18:44:49 ImgBurn closed!