Hi! this is my first post, but i'm very frustrated and i've been searching your message board for an answer to my problem. here's the log: I 17:24:14 ImgBurn Version 220.127.116.11 started! I 17:24:14 Microsoft Windows Vista Home Premium Edition (6.0, Build 6000) I 17:24:14 Total Physical Memory: 3,143,548 KB - Available: 2,053,460 KB I 17:24:14 Initialising SPTI... I 17:24:14 Searching for SCSI / ATAPI devices... I 17:24:14 Found 1 DVD±RW/RAM! I 17:25:03 Operation Started! I 17:25:03 Source File: C:\Users\Ian\Desktop\Bioshock [PCDVD + Crack][spanish_EN_GE_FR_IT].ISO I 17:25:03 Source File Sectors: 3,164,768 (MODE1/2048) I 17:25:03 Source File Size: 6,481,444,864 bytes I 17:25:03 Source File Volume Identifier: BIOSHOCK I 17:25:03 Source File Implementation Identifier: Nero I 17:25:03 Source File File System(s): UDF (1.02) I 17:25:03 Destination Device: [1:1:0] ATAPI DVD A DH16A3L 8H1B (E:) (ATAPI) I 17:25:03 Destination Media Type: DVD+R DL (Disc ID: RICOHJPN-D01-02) (Speeds: 4x, 6x, 8x) I 17:25:03 Destination Media Sectors: 4,173,824 I 17:25:03 Write Mode: DVD I 17:25:03 Write Type: DAO I 17:25:03 Write Speed: 4x I 17:25:03 Link Size: Auto I 17:25:03 Test Mode: No I 17:25:03 BURN-Proof: Enabled I 17:25:03 Optimal L0 Data Zone Capacity: 1,582,384 I 17:25:03 Optimal L0 Data Zone Method: ECC Block Boundary I 17:25:33 Filling Buffer... (40 MB) I 17:25:34 Writing LeadIn... I 17:25:49 Writing Image... (LBA: 0 - 3164767) I 17:25:49 Writing Layer 0... (LBA: 0 - 2086911) I 17:38:40 Writing Layer 1... (LBA: 2086912 - 3164767) I 17:45:19 Synchronising Cache... I 17:45:23 Closing Track... I 17:45:24 Finalising Disc... W 17:45:39 Potential 'WaitImmediateIO' Deferred Error - (0/2) - Session Fixation Error Writing Lead Out W 17:46:52 Potential 'WaitImmediateIO' Deferred Error - (0/2) - Session Fixation Error Writing Lead Out W 17:47:30 Potential 'WaitImmediateIO' Deferred Error - (0/2) - Session Fixation Error Writing Lead Out W 17:49:47 Potential 'WaitImmediateIO' Deferred Error - (0/2) - Session Fixation Error Writing Lead In E 17:49:48 Finalise Disc Failed! - Reason: Session Fixation Error Writing Lead In I 17:49:48 Finalising Disc (Last Attempt!)... needless to say, it fails. When i run it at max write speed it reaches 91% and then fails, so i switched to 4x and this happened. it's done this a number of times, and i have about 5 new coasters as a result. now, i know i'm not using verbatim dual layers and that this happens a lot with most other brands, I was just hoping for any kind of advice besides chucking these disks and buying verbatim ones. needless to say, i will be from now on.