Error con grabadora liteon 124b e imgburn

hola amigos, llevo toda la noche intentando grabar juegos xgd3 y llevo ya tres posa vasis. Hice todo correctamente; flashear la grabadora y seguir los pasos de grabacion; pero me sale un error en medio de la grabacion. Lo bueno es que el juego se graba y te deja jugarlo en la xbox pero cuando llevas un rato te dice: disco sucio y deja de funcionar:

Este es el error que me sale

I 01:13:39 ImgBurn Version 2.5.7.0 started!
I 01:13:39 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3)
I 01:13:39 Total Physical Memory: 1.572.336 KB - Available: 1.191.956 KB
I 01:13:39 Initialising SPTI...
I 01:13:39 Searching for SCSI / ATAPI devices...
I 01:13:39 -> Drive 1 - Info: TSSTcorp DVD-ROM SH-D162D SB00 (F:) (ATA)
I 01:13:39 -> Drive 2 - Info: ATAPI iHAS124 B AL0S (G:) (SCSI)
I 01:13:39 Found 1 DVD-ROM and 1 DVD±RW/RAM!
I 01:29:20 Operation Started!
I 01:29:20 Source File: C:\Documents and Settings\USUARIO\Escritorio\juegos xbox 360\b-mw3x3\MW3 By changoboy.dvd
I 01:29:20 Source File Sectors: 4.267.015 (MODE1/2048)
I 01:29:21 Source File Size: 8.738.846.720 bytes
I 01:29:21 Source File Volume Identifier: DVD_ROM
I 01:29:21 Source File Volume Set Identifier: 3be9c000MS UDFBridge
I 01:29:21 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM)
I 01:29:21 Source File Implementation Identifier: Microsoft CDIMAGE UDF
I 01:29:21 Source File File System(s): ISO9660, UDF (1.50)
I 01:29:21 Destination Device: [2:2:0] ATAPI iHAS124 B AL0S (G:) (SCSI)
I 01:29:21 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00)
I 01:29:21 Destination Media Supported Write Speeds: 2,4x, 4x, 6x, 8x
I 01:29:21 Destination Media Sectors: 4.267.040
I 01:29:21 Write Mode: DVD
I 01:29:21 Write Type: DAO
I 01:29:21 Write Speed: 2,4x
I 01:29:21 DVD+R DL Reserve Track: No
I 01:29:21 Link Size: Auto
I 01:29:21 Lock Volume: Yes
I 01:29:21 Test Mode: No
I 01:29:21 OPC: Yes
I 01:29:21 BURN-Proof: Enabled
I 01:29:21 Write Speed Successfully Set! - Effective: 3.324 KB/s (2,4x)
I 01:29:21 Book Type Setting: DVD-ROM
I 01:29:21 Advanced Settings - Force HT: No, Online HT: No, OverSpeed: No, SmartBurn: Yes
I 01:29:56 Optimal L0 Data Zone Capacity: 2.133.520
I 01:29:56 Optimal L0 Data Zone Method: Copied From Original Disc
I 01:29:56 Set L0 Data Zone Capacity Succeeded!
I 01:30:04 Filling Buffer... (40 MB)
I 01:30:05 Writing LeadIn...
I 01:30:07 Writing Session 1 of 1... (1 Track, LBA: 0 - 4267014)
I 01:30:07 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 4267014)
I 01:30:07 Writing Layer 0... (LBA: 0 - 2133519)
W 01:47:31 Failed to Write Sectors 1690048 - 1690079 - Reason: No se puede ejecutar el proceso debido a un error del dispositivo de E/S.
W 01:47:31 Retrying (1 of 20)...
I 01:47:34 Writing Sectors...
I 01:52:07 Writing Layer 1... (LBA: 2133520 - 4267014)

a ver si echais una mano.............