Problème grauvure image burn

Bonjour,

Depuis quelques temps, je n'arrive plus à graver avec Image Burn. Alors qu'il fonctionnait très bien avant.
Voici le log:

I 15:36:13 Microsoft Windows Vista Home Premium Edition (6.0, Build 6002 : Service Pack 2)
I 15:36:13 Total Physical Memory: 2 094 856 KB - Available: 955 980 KB
I 15:36:13 Initialising SPTI...
I 15:36:13 Searching for SCSI / ATAPI devices...
I 15:36:13 -> Drive 1 - Info: Optiarc DVD RW AD-5170A 1.52 (H:) (ATA)
I 15:36:13 Found 1 DVD±RW!
I 15:43:22 Operation Started!
I 15:43:22 Building Image Tree...
I 15:43:30 Checking Directory Depth...
I 15:43:30 Calculating Totals...
I 15:43:30 Preparing Image...
I 15:43:31 Checking Path Length...
I 15:43:31 Contents: 5 Files, 0 Folders
I 15:43:31 Content Type: DivX Video
I 15:43:31 Data Type: MODE1/2048
I 15:43:31 File System(s): ISO9660, Joliet
I 15:43:31 Volume Label: Video
I 15:43:31 Size: 4 417 389 508 bytes
I 15:43:31 Sectors: 2 156 929
I 15:43:31 Image Size: 4 417 454 080 bytes
I 15:43:31 Image Sectors: 2 156 960
I 15:43:36 Operation Successfully Completed! - Duration: 00:00:14
I 15:43:37 Operation Started!
I 15:43:37 Source File: -==/\/[BUILD IMAGE]\/\==-
I 15:43:37 Source File Sectors: 2 156 960 (MODE1/2048)
I 15:43:37 Source File Size: 4 417 454 080 bytes
I 15:43:37 Source File Volume Identifier: Video
I 15:43:37 Source File Volume Set Identifier: INDÉFINI
I 15:43:37 Source File Application Identifier: ImgBurn v2.5.6.0 - The Ultimate Image Burner!
I 15:43:37 Source File Implementation Identifier: ImgBurn v2.5.6.0
I 15:43:37 Source File File System(s): ISO9660; Joliet
I 15:43:37 Destination Device: [2:0:0] Optiarc DVD RW AD-5170A 1.52 (H:) (ATA)
I 15:43:37 Destination Media Type: DVD-RW (Disc ID: MCC 01RW4X)
I 15:43:37 Destination Media Supported Write Speeds: 2x; 4x
I 15:43:37 Destination Media Sectors: 2 297 888
I 15:43:37 Write Mode: DVD
I 15:43:37 Write Type: DAO
I 15:43:37 Write Speed: 4x
I 15:43:37 Link Size: Auto
I 15:43:37 Lock Volume: Yes
I 15:43:37 Test Mode: No
I 15:43:37 OPC: No
I 15:43:37 BURN-Proof: Enabled
I 15:43:37 Write Speed Successfully Set! - Effective: 5 540 KB/s (4x)
I 15:43:37 Filling Buffer... (40 MB)
I 15:43:38 Writing LeadIn...
W 15:43:50 Failed to Write Sectors 0 - 31 - Reason: Power Calibration Area Error
W 15:43:50 Retrying (1 of 20)...


Du coup j'ai arrêté la gravure. C'est quoi cette histoire de Calibration Area error?

Merci pour votre aide!