Hi, I am trying to burn backup Xbox 360 discs. I have a MacBook but am using Bootcamp to make things easier . . . . . I have run agbx360 which seems to have done its thing. Then when I run imgburn I get: I 18:49:27 ImgBurn Version 188.8.131.52 started! I 18:49:27 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3) I 18:49:27 Total Physical Memory: 1,810,392 KB - Available: 1,279,668 KB W 18:49:27 Drive C:\ (FAT32) does not support single files > 4 GB in size. I 18:49:27 Initialising SPTI... I 18:49:27 Searching for SCSI / ATAPI devices... I 18:49:28 -> Drive 1 - Info: MATSHITA DVD-R UJ-868 KB19 (D (ATA) I 18:49:28 Found 1 DVD±RW! I 18:50:18 Operation Started! I 18:50:18 Source File: F:\Users\Alex\Desktop\jailbreak stuff\acb360\acb360.dvd I 18:50:18 Source File Sectors: 3,827,488 (MODE1/2048) I 18:50:18 Source File Size: 7,838,695,424 bytes I 18:50:18 Source File Volume Identifier: DVD_ROM I 18:50:18 Source File Volume Set Identifier: 1b018000MS UDFBridge I 18:50:18 Source File Application Identifier: CDIMAGE 2.45 (12/06/2000 TM) I 18:50:18 Source File Implementation Identifier: Microsoft CDIMAGE UDF I 18:50:18 Source File File System(s): ISO9660, UDF (1.50) I 18:50:18 Destination Device: [1:0:0] MATSHITA DVD-R UJ-868 KB19 (D (ATA) I 18:50:18 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 2.4x, 4x) I 18:50:18 Destination Media Sectors: 4,173,824 I 18:50:18 Write Mode: DVD I 18:50:18 Write Type: DAO I 18:50:18 Write Speed: 2.4x I 18:50:18 Link Size: Auto I 18:50:18 Lock Volume: Yes I 18:50:18 Test Mode: No I 18:50:18 OPC: No I 18:50:18 BURN-Proof: Enabled I 18:50:18 Write Speed Successfully Set! - Effective: 3,324 KB/s (2.4x) I 18:50:18 Optimal L0 Data Zone Capacity: 1,913,760 I 18:50:19 Optimal L0 Data Zone Method: Copied From Original Disc E 18:51:05 Set L0 Data Zone Capacity Failed! - Reason: Power Calibration Area Error E 18:51:06 Operation Failed! - Duration: 00:00:47 I 18:51:06 Average Write Rate: N/A - Maximum Write Rate: N/A I have tried updatin the firmware of the Matshita. The other solution people seem to suggest on here is to try a better media but I am using Verbatim DVD+R DL, I thought they were the best. Any ideas please?