Thanx Cynthia!
I would also like to mention I'm running Firmware V1.12 on my Plextor PX-708A DVD-Recorder and the DVD+RW media I'm using is TDK branded 4x DVD+RW [RICOHJPN-W11-01].
Here is two logs with the error:
; //****************************************\\
; ImgBurn Version 2.4.0.0 - Log
; onsdag, 05 mars 2008, 21:46:01
; \\****************************************//
;
;
I 21:37:43 ImgBurn Version 2.4.0.0 started!
I 21:37:43 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
I 21:37:43 Total Physical Memory: 2 095 852 KB - Available: 1 543 688 KB
I 21:37:45 Initialising SPTI...
I 21:37:45 Searching for SCSI / ATAPI devices...
I 21:37:45 Found 1 DVD-ROM and 1 DVD±RW!
I 21:43:08 Operation Started!
I 21:43:08 Source File: F:\DVD-R\ial\bow-ial.dvdr.img
I 21:43:08 Source File Sectors: 2 266 931 (MODE1/2048)
I 21:43:08 Source File Size: 4 642 674 688 bytes
I 21:43:08 Source File Volume Identifier: I_AM_LEGEND
I 21:43:08 Source File Volume Set Identifier: 47B4B7240000000F
I 21:43:08 Source File Application Identifier: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR © 1993 E.YOUNGDALE © 1997 J.PEARSON/J.SCHILLING
I 21:43:08 Source File Implementation Identifier: mkisofs
I 21:43:08 Source File File System(s): ISO9660; UDF (1.02)
I 21:43:08 Destination Device: [3:0:0] PLEXTOR DVDR PX-708A 1.12 (H:) (ATA)
I 21:43:08 Destination Media Type: DVD+RW (Disc ID: RICOHJPN-W11-01) (Speeds: 2,4x; 4x)
I 21:43:08 Destination Media Sectors: 2 295 104
I 21:43:08 Write Mode: DVD
I 21:43:08 Write Type: DAO
I 21:43:08 Write Speed: 2,4x
I 21:43:08 Link Size: Auto
I 21:43:08 Test Mode: No
I 21:43:08 OPC: Yes
I 21:43:08 BURN-Proof: Enabled
I 21:43:08 Book Type Setting: N/A
I 21:43:08 Advanced Settings - PowerRec: Yes
E 21:43:27 Optimum Power Calibration Failed! - Reason: Write Protected
E 21:43:27 Operation Failed! - Duration: 00:00:19
I 21:43:27 Average Write Rate: N/A - Maximum Write Rate: N/A
I 21:46:01 Close Request Acknowledged
I 21:46:01 Closing Down...
I 21:46:01 Shutting down SPTI...
I 21:46:01 ImgBurn closed!
;
;
; //****************************************\\
; ImgBurn Version 2.4.0.0 - Log
; onsdag, 05 mars 2008, 20:16:14
; \\****************************************//
;
;
I 18:59:39 ImgBurn Version 2.4.0.0 started!
I 18:59:39 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
I 18:59:39 Total Physical Memory: 2 095 852 KB - Available: 1 600 196 KB
I 18:59:40 Initialising SPTI...
I 18:59:40 Searching for SCSI / ATAPI devices...
I 18:59:40 Found 1 DVD-ROM and 1 DVD±RW!
I 19:00:18 Operation Started!
I 19:00:18 Device: [3:0:0] PLEXTOR DVDR PX-708A 1.12 (H:) (ATA)
I 19:00:18 Media Type: DVD+RW (Disc ID: ICOHJPN-W11-01) (Speeds: 2,4x; 4x)
I 19:00:18 Quick Erase: No
I 19:00:18 Erasing Disc...
I 19:15:24 Operation Successfully Completed! - Duration: 00:15:05
I 19:18:21 Operation Started!
I 19:18:21 Source File: F:\DVD-R\ial\bow-ial.dvdr.img
I 19:18:21 Source File Sectors: 2 266 931 (MODE1/2048)
I 19:18:21 Source File Size: 4 642 674 688 bytes
I 19:18:21 Source File Volume Identifier: I_AM_LEGEND
I 19:18:21 Source File Volume Set Identifier: 47B4B7240000000F
I 19:18:21 Source File Application Identifier: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR © 1993 E.YOUNGDALE © 1997 J.PEARSON/J.SCHILLING
I 19:18:21 Source File Implementation Identifier: mkisofs
I 19:18:21 Source File File System(s): ISO9660; UDF (1.02)
I 19:18:21 Destination Device: [3:0:0] PLEXTOR DVDR PX-708A 1.12 (H:) (ATA)
I 19:18:21 Destination Media Type: DVD+RW (Disc ID: ICOHJPN-W11-01) (Speeds: 2,4x; 4x)
I 19:18:21 Destination Media Sectors: 2 295 104
I 19:18:21 Write Mode: DVD
I 19:18:21 Write Type: DAO
I 19:18:21 Write Speed: 2,4x
I 19:18:21 Link Size: Auto
I 19:18:21 Test Mode: No
I 19:18:21 OPC: Yes
I 19:18:21 BURN-Proof: Enabled
I 19:18:21 Book Type Setting: N/A
I 19:18:21 Advanced Settings - PowerRec: Yes
W 19:26:51 Optimum Power Calibration Failed! - Reason: Write Protected
W 19:26:51 Retrying (1)...
W 19:26:52 Retry Failed - Reason: Write Protected
W 19:26:52 Retrying (2)...
W 19:26:52 Retry Failed - Reason: Write Protected
W 19:26:52 Retrying (3)...
W 19:26:53 Retry Failed - Reason: Write Protected
W 19:26:53 Retrying (4)...
W 19:26:53 Retry Failed - Reason: Write Protected
W 19:26:53 Retrying (5)...
W 19:26:53 Retry Failed - Reason: Write Protected
W 19:26:53 Retrying (6)...
W 19:26:53 Retry Failed - Reason: Write Protected
W 19:26:53 Retrying (7)...
W 19:26:54 Retry Failed - Reason: Write Protected
W 19:26:54 Retrying (8)...
W 19:26:54 Retry Failed - Reason: Write Protected
W 19:26:54 Retrying (9)...
W 19:26:54 Retry Failed - Reason: Write Protected
W 19:26:54 Retrying (10)...
W 19:26:54 Retry Failed - Reason: Write Protected
W 19:26:54 Retrying (11)...
W 19:26:54 Retry Failed - Reason: Write Protected
W 19:26:54 Retrying (12)...
W 19:26:56 Optimum Power Calibration Failed! - Reason: Write Protected
I 19:26:56 Filling Buffer... (40 MB)
I 19:26:57 Writing LeadIn...
I 19:27:04 Writing Session 1 of 1... (1 Track, LBA: 0 - 2266930)
I 19:27:04 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 2266930)
I 19:50:13 Synchronising Cache...
I 19:50:14 Closing Session...
I 19:50:15 Exporting Graph Data...
I 19:50:15 Graph Data File: C:\Documents and Settings\alper\Application Data\ImgBurn\IBG Files\PLEXTOR_DVDR_PX-708A_1.12_DEN-5-MARS-2008_19-18_ICOHJPN-W11-01_2,4x.ibg
I 19:50:15 Export Successfully Completed!
I 19:50:15 Operation Successfully Completed! - Duration: 00:31:53
I 19:50:15 Average Write Rate: 3 266 KB/s (2.4x) - Maximum Write Rate: 3 391 KB/s (2.4x)
I 19:50:15 Cycling Tray before Verify...
I 19:50:58 Device Ready!
I 19:51:00 Operation Started!
I 19:51:00 Source Device: [3:0:0] PLEXTOR DVDR PX-708A 1.12 (H:) (ATA)
I 19:51:00 Source Media Type: DVD+RW (Book Type: DVD+RW) (Disc ID: RICOHJPN-W11-01) (Speeds: 2,4x; 4x)
I 19:51:00 Image File: F:\DVD-R\ial\bow-ial.dvdr.img
I 19:51:00 Image File Sectors: 2 266 931 (MODE1/2048)
I 19:51:00 Image File Size: 4 642 674 688 bytes
I 19:51:00 Image File Volume Identifier: I_AM_LEGEND
I 19:51:00 Image File Volume Set Identifier: 47B4B7240000000F
I 19:51:00 Image File Application Identifier: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR © 1993 E.YOUNGDALE © 1997 J.PEARSON/J.SCHILLING
I 19:51:00 Image File Implementation Identifier: mkisofs
I 19:51:00 Image File File System(s): ISO9660; UDF (1.02)
I 19:51:00 Read Speed (Data/Audio): MAX / MAX
I 19:51:00 Verifying Session 1 of 1... (1 Track, LBA: 0 - 2266930)
I 19:51:00 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 2266930)
I 20:13:33 Exporting Graph Data...
I 20:13:33 Graph Data File: C:\Documents and Settings\alper\Application Data\ImgBurn\IBG Files\PLEXTOR_DVDR_PX-708A_1.12_DEN-5-MARS-2008_19-18_ICOHJPN-W11-01_2,4x.ibg
I 20:13:33 Export Successfully Completed!
I 20:13:33 Operation Successfully Completed! - Duration: 00:22:27
I 20:13:33 Average Verify Rate: 3 365 KB/s (2.4x) - Maximum Verify Rate: 3 932 KB/s (2.8x)
I 20:16:13 Close Request Acknowledged
I 20:16:13 Closing Down...
I 20:16:14 Shutting down SPTI...
I 20:16:14 ImgBurn closed!