dph-

maybe you got some bad dvd's i had the same problem with verbatims depends where they are made. Try a new lot from a different supplier i did the same and it worked. http://forum.imgburn.com/index.php?/topic/23302-50-write-io-error-on-ihas-124e/

i know i have the latest firmware, i mean can't it be because the firmware ? can i go to a previous version that reported working ? like 4L06 - 4L03 and for some reason i can't install kprobe while registering fonts keeps bloking Last Edit: i might had a bad lot of verbatims got some new ones today will try them PS: on RITEK-s04-66 (traxdata) overburns them log from traxdata test: I 18:13:38 ImgBurn Version 2.5.8.0 started! I 18:13:38 Microsoft Windows 8 Professional x64 Edition (6.2, Build 9200) I 18:13:38 Total Physical Memory: 4,092,148 KiB - Available: 1,905,440 KiB I 18:13:38 Initialising SPTI... I 18:13:38 Searching for SCSI / ATAPI devices... I 18:13:38 -> Drive 1 - Info: ATAPI iHAS124 E 4L08 (F:) (SATA) I 18:13:38 -> Drive 2 - Info: DTSOFT BDROM 1.05 (G:) (Virtual) I 18:13:38 -> Drive 3 - Info: ASUS DRW-1814BLT 1.14 (H:) (SATA) I 18:13:38 Found 2 DVD±RW/RAMs and 1 BD-ROM! I 18:14:34 Operation Started! I 18:14:34 Source File: E:\Luate Torrent\Jocuri\Assassins.Creed.Rogue.XBOX360-iMARS\imars.asscr.360.dvd I 18:14:34 Source File Sectors: 4,267,015 (MODE1/2048) I 18:14:34 Source File Size: 8,738,846,720 bytes I 18:14:34 Source File Volume Identifier: DVD_ROM I 18:14:34 Source File Volume Set Identifier: 7bd44000MS UDFBridge I 18:14:34 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM) I 18:14:34 Source File Implementation Identifier: Microsoft CDIMAGE UDF I 18:14:34 Source File File System(s): ISO9660, UDF (1.50) I 18:14:34 Destination Device: [0:0:0] ATAPI iHAS124 E 4L08 (F:) (SATA) I 18:14:34 Destination Media Type: DVD+R DL (Disc ID: RITEK-S04-66) I 18:14:34 Destination Media Supported Write Speeds: 4x, 6x, 8x I 18:14:34 Destination Media Sectors: 4,267,040 I 18:14:34 Destination Media L0 Data Zone Capacity: 2,133,520 (Changeable: Yes) I 18:14:34 Write Mode: DVD I 18:14:34 Write Type: DAO I 18:14:34 Write Speed: 4x I 18:14:34 DVD+R DL Reserve Track: No I 18:14:34 Link Size: Auto I 18:14:34 Lock Volume: Yes I 18:14:34 Test Mode: Yes I 18:14:34 OPC: No I 18:14:34 BURN-Proof: Enabled I 18:14:34 Write Speed Successfully Set! - Effective: 5,540 KB/s (4x) I 18:14:34 Book Type Setting: DVD-ROM I 18:14:34 Advanced Settings - Force HT: Yes, Online HT: No, OverSpeed: No, SmartBurn: Yes I 18:14:34 Optimal L0 Data Zone Capacity: 2,133,520 I 18:14:34 Optimal L0 Data Zone Method: Copied From Original Disc I 18:14:34 Set L0 Data Zone Capacity Succeeded! I 18:14:34 L0 Data Zone Capacity - Effective: 2,133,520 I 18:14:35 Filling Buffer... (80 MiB) I 18:14:36 Writing LeadIn... I 18:14:42 Writing Session 1 of 1... (1 Track, LBA: 0 - 4267014) I 18:14:42 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 4267014) I 18:14:42 Writing Layer 0... (LBA: 0 - 2133519) I 18:27:44 Writing Layer 1... (LBA: 2133520 - 4267014) I 18:40:47 Synchronising Cache... I 18:40:50 Closing Track... I 18:40:51 Finalising Disc... I 18:41:27 Cycling Tray after Test Write... I 18:41:32 Exporting Graph Data... I 18:41:32 Graph Data File: C:\Users\Razvan\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_iHAS124_E_4L08_FRIDAY-DECEMBER-12-2014_6-14_PM_RITEK-S04-66_4x.ibg I 18:41:32 Export Successfully Completed! I 18:41:32 Operation Successfully Completed! - Duration: 00:26:57 I 18:41:32 Average Write Rate: 5,456 KiB/s (4.0x) - Maximum Write Rate: 5,501 KiB/s (4.1x) LE: got 1 good burn on those verbatims today

and can't i just change the firmware of the drive with a known working firmware ? or it could be faulty from factory ?

well i tried 4 disks with opc on and off they are made in UAE-United Arabian Emirates I don't think i can find disks made in Singapore in my country

So i have a Lite-On Atapi 124E 4L08 dvd-rom new, bought Verbatims MKM-003 dvd+r dl and i get this I/O error at 50% when writing the discs. I 20:52:57 ImgBurn Version 2.5.8.0 started! I 20:52:57 Microsoft Windows 8 Professional x64 Edition (6.2, Build 9200) I 20:52:57 Total Physical Memory: 4,092,148 KiB - Available: 2,759,652 KiB I 20:52:57 Initialising SPTI... I 20:52:57 Searching for SCSI / ATAPI devices... I 20:52:57 -> Drive 1 - Info: DTSOFT BDROM 1.05 (G:) (Virtual) I 20:52:57 -> Drive 2 - Info: ATAPI iHAS124 E 4L08 (F:) (SATA) I 20:52:57 Found 1 DVD±RW/RAM and 1 BD-ROM! I 21:07:37 Operation Started! I 21:07:37 Source File: E:\Luate Torrent\Jocuri\Assassins.Creed.Rogue.XBOX360-iMARS\imars.asscr.360.dvd I 21:07:37 Source File Sectors: 4,267,015 (MODE1/2048) I 21:07:37 Source File Size: 8,738,846,720 bytes I 21:07:37 Source File Volume Identifier: DVD_ROM I 21:07:37 Source File Volume Set Identifier: 7bd44000MS UDFBridge I 21:07:37 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM) I 21:07:37 Source File Implementation Identifier: Microsoft CDIMAGE UDF I 21:07:37 Source File File System(s): ISO9660, UDF (1.50) I 21:07:37 Destination Device: [0:0:0] ATAPI iHAS124 E 4L08 (F:) (SATA) I 21:07:37 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) I 21:07:37 Destination Media Supported Write Speeds: 4x, 6x, 8x I 21:07:37 Destination Media Sectors: 4,267,040 I 21:07:37 Destination Media L0 Data Zone Capacity: 2,133,520 (Changeable: Yes) I 21:07:37 Write Mode: DVD I 21:07:37 Write Type: DAO I 21:07:37 Write Speed: 4x I 21:07:37 DVD+R DL Reserve Track: No I 21:07:37 Link Size: Auto I 21:07:37 Lock Volume: Yes I 21:07:37 Test Mode: No I 21:07:37 OPC: Yes I 21:07:37 BURN-Proof: Enabled I 21:07:37 Write Speed Successfully Set! - Effective: 5,540 KB/s (4x) I 21:07:37 Book Type Setting: DVD-ROM I 21:07:37 Advanced Settings - Force HT: Yes, Online HT: No, OverSpeed: No, SmartBurn: Yes I 21:07:37 CD/DVD Life Record Count: 4 - CD/DVD Record Count: 3 I 21:08:03 User Specified L0 Data Zone Capacity: 2,133,520 I 21:08:03 Set L0 Data Zone Capacity Succeeded! I 21:08:03 L0 Data Zone Capacity - Effective: 2,133,520 I 21:08:03 Filling Buffer... (80 MiB) I 21:08:04 Writing LeadIn... I 21:08:07 Writing Session 1 of 1... (1 Track, LBA: 0 - 4267014) I 21:08:07 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 4267014) I 21:08:07 Writing Layer 0... (LBA: 0 - 2133519) I 21:21:09 Writing Layer 1... (LBA: 2133520 - 4267014) W 21:21:15 Failed to Write Sectors 2133808 - 2133839 - Reason: Write Error W 21:21:15 Retrying (1 of 20)... W 21:21:15 Retry Failed - Reason: Invalid Address For Write W 21:21:15 Retrying (2 of 20)... W 21:21:15 Retry Failed - Reason: Invalid Address For Write W 21:21:15 Retrying (3 of 20)... W 21:21:15 Retry Failed - Reason: Invalid Address For Write W 21:21:15 Retrying (4 of 20)... W 21:21:15 Retry Failed - Reason: Invalid Address For Write W 21:21:15 Retrying (5 of 20)... W 21:21:15 Retry Failed - Reason: Invalid Address For Write W 21:21:15 Retrying (6 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (7 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (8 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (9 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (10 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (11 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (12 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (13 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (14 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (15 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (16 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (17 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (18 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (19 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write W 21:21:16 Retrying (20 of 20)... W 21:21:16 Retry Failed - Reason: Invalid Address For Write E 21:21:36 Failed to Write Sectors 2133808 - 2133839 - Reason: Write Error E 21:21:36 Next Writable Address: 2133557 I 21:21:36 Synchronising Cache... W 21:21:40 User opted to skip the 'Close Track/Session/Disc' functions. E 21:21:40 Failed to Write Image! I 21:21:40 Exporting Graph Data... I 21:21:40 Graph Data File: C:\Users\Razvan\AppData\Roaming\ImgBurn\Graph Data Files\ATAPI_iHAS124_E_4L08_THURSDAY-DECEMBER-11-2014_9-07_PM_MKM-003-00_4x.ibg I 21:21:40 Export Successfully Completed! E 21:21:40 Operation Failed! - Duration: 00:14:02 I 21:21:40 Average Write Rate: 5,275 KiB/s (3.9x) - Maximum Write Rate: 5,521 KiB/s (4.1x)