andy666

Thanks for the suggestions. As you see, I have tried the drive on another computer and it failed again. I have asked Lacie for Firmware update and apparently there is no updates available. I will try using the USB 2 port (I added USB 3 port to my desktop through a card) and I have also changed the cable as suggested by you and Lacie. I will post again if I am successful. So I guess, if the attempt fails, the next step will be either another media or internal drive. I always had the intention of getting an internal drive, so I guess I will get one if the Verbatim fails. I will have to look at the recommended drives in the forum. Thanks once again.

Just to add: I am using Windows 7 and I have Lacie external slim Bluray writer USB 3. I had no problem with Panasonic 25 GB BD RE and 50 GB DL BD RE.It is the Panasonic DL BDR that I am having difficulty with. I also tried the external hard drive on my ultrabook with USB3 and I got similar message but the sectors are slightly different. Here is the new log: I 09:46:35 ImgBurn Version 2.5.8.0 started! I 09:46:35 Microsoft Windows 7 Ultimate x64 Edition (6.1, Build 7601 : Service Pack 1) I 09:46:35 Total Physical Memory: 10,368,576 KiB - Available: 6,206,044 KiB I 09:46:35 Initialising SPTI... I 09:46:35 Searching for SCSI / ATAPI devices... I 09:46:35 -> Drive 1 - Info: DTSOFT BDROM 1.05 (F:) (Virtual) I 09:46:35 -> Drive 2 - Info: Optiarc BD RW BD-5750H 1.00 (G:) (USB 3.0) I 09:46:35 Found 1 BD-ROM and 1 BD-RE XL! I 09:51:04 Operation Started! I 09:51:04 Source File: C:\Users\.....Videos\oip2\----iso I 09:51:04 Source File Sectors: 18,145,280 (MODE1/2048) I 09:51:05 Source File Size: 37,161,533,440 bytes I 09:51:05 Source File Volume Identifier: ......... I 09:51:05 Source File Volume Set Identifier: 8CF6ABE67A7AD214_VOLUME_SET_ID I 09:51:05 Source File Application Identifier: APPLICATION_ID I 09:51:05 Source File Implementation Identifier: IMPLEMENTATION_ID I 09:51:05 Source File File System(s): UDF (2.50) I 09:51:05 Destination Device: [0:0:0] Optiarc BD RW BD-5750H 1.00 (G:) (USB) I 09:51:05 Destination Media Type: BD-R (Disc ID: MEI-T02-001) I 09:51:05 Destination Media Supported Write Speeds: 2x, 4x I 09:51:05 Destination Media Sectors: 24,438,784 I 09:51:05 Write Mode: BD I 09:51:05 Write Type: DAO I 09:51:05 Write Speed: MAX I 09:51:05 Hardware Defect Management Active: No I 09:51:05 BD-R Verify Not Required: Yes I 09:51:05 Link Size: Auto I 09:51:05 Lock Volume: Yes I 09:51:05 Test Mode: No I 09:51:05 OPC: No I 09:51:05 BURN-Proof: Enabled I 09:51:05 Write Speed Successfully Set! - Effective: 17,983 KB/s (4x) I 09:51:52 Filling Buffer... (80 MiB) I 09:51:52 Writing LeadIn... I 09:51:52 Writing Session 1 of 1... (1 Track, LBA: 0 - 18145279) I 09:51:52 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 18145279) I 09:51:52 Writing Layer 0... (LBA: 0 - 12219391) W 10:18:15 Failed to Write Sectors 9611872 - 9611903 - Reason: Write Error W 10:18:15 Retrying (1 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (2 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (3 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (4 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (5 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (6 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (7 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (8 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (9 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (10 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (11 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (12 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (13 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (14 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (15 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (16 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (17 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (18 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (19 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write W 10:18:15 Retrying (20 of 20)... W 10:18:15 Retry Failed - Reason: Invalid Address For Write E 10:18:42 Failed to Write Sectors 9611872 - 9611903 - Reason: Write Error E 10:18:42 Next Writable Address: 9608896 I 10:18:42 Synchronising Cache... I 10:18:49 Closing Track... I 10:18:52 Finalising Disc... E 10:19:10 Failed to Write Image! I 10:19:10 Exporting Graph Data... I 10:19:10 Graph Data File: C:\Users\Ammar\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_BD_RW_BD-5750H_1.00_SUNDAY-7-JULY-2013_9-51_AM_MEI-T02-001_MAX.ibg I 10:19:10 Export Successfully Completed! E 10:19:10 Operation Failed! - Duration: 00:28:05 I 10:19:10 Average Write Rate: 11,947 KiB/s (2.7x) - Maximum Write Rate: 17,607 KiB/s (4.0x) From reading other posts with similar but not exactly the same problem writing error, suggestions have been to try to update the firmware but Lacie does not have a new Firmware to download. Changing the discs is what I am going to do next but I have bought 20 PanasonicDL BDR discs at an expensive price and it is supposedly a good manufacturer so I am disappointed that this waste of money. I guess I am going to try either another software or change my internal drive from DVd to BLURAY drive. I guess if I have no suggestions here, I will first try a new software and then I will try the Verbatim discs when I receive them before changing the drive..Any suggestions on the above options are very appreciated. Thanks for looking and trying to help me. Andy

Hi Thanks for looking and suggestions. I have wasted two panasonic 50 GB DL BDR burning two different images which I tested with Panasonic DL BD RE and they worked well. I get an error at around 52% with the following input: SK interpretation: Illegal request ASC/ASCQ Interpretation: Invalid address for write. I have attached the log log.txt