Frankieboy

That is quite likely, but it has also done it to Panasonic BD-RE discs. The LG writer didn't like the LG discs to start with, but one of the programmes I tried, did get it to work, but it also write protected the disc. I tried Panasonic discs and one of these, the only one I used, became write protected. I dare not use the other one: they are too expensive to waste. The reader on Imgburn allows me to read the disc. If there was an editor which would let me manually write zeros over the write protection, I think I could salvage the discs. Thanks for your help.

=============================================== Filter Driver Load Order - ImgBurn v2.5.0.0 =============================================== Upper Device Filter: redbook Upper Class Filter: [None Found] Device: CD/DVD-ROM Device Lower Class Filter: clbstor Lower Device Filter: imapi Filter Name: redbook File Name: C:\C\WINDOWS\system32\DRIVERS\redbook.sys File Version: 5.1.2600.5512 (xpsp.080413-2108) File Description: Redbook Audio Filter Driver Product Name: Microsoft® Windows® Operating System Product Version: 5.1.2600.5512 Company Name: Microsoft Corporation Copyright: © Microsoft Corporation. All rights reserved. Filter Name: clbstor File Name: C:\C\WINDOWS\system32\Drivers\clbstor.sys File Version: 5.0.3004 [5.0.0.3004] File Description: Cyberlink Storage Helper Driver (WindowsNT5.x) Product Name: Product Version: 5.0.3004 [5.0.0.3004] Company Name: Cyberlink Co.,Ltd. Copyright: Copyright© Cyberlink Co.,Ltd. Filter Name: imapi File Name: C:\C\WINDOWS\system32\DRIVERS\imapi.sys File Version: 5.1.2600.5512 (xpsp.080413-2108) File Description: IMAPI Kernel Driver Product Name: Microsoft® Windows® Operating System Product Version: 5.1.2600.5512 Company Name: Microsoft Corporation Copyright: © Microsoft Corporation. All rights reserved.

Upper Device Filter redbook Upper Class Filter (None Found) Device CD/DVD-ROM Device Lower Class Filter clbstor Lower Device Filter imapi Daemon Tools not installed. Other burn/optical storage related programs removed.

I 19:13:09 ImgBurn Version 2.5.0.0 started! I 19:13:09 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3) I 19:13:09 Total Physical Memory: 3,372,140 KB - Available: 2,797,208 KB I 19:13:09 Initialising SPTI... I 19:13:09 Searching for SCSI / ATAPI devices... I 19:13:09 Found 1 HD DVD-ROM/BD-RE! I 19:13:39 Operation Started! I 19:13:39 Device: [1:0:0] HL-DT-ST BD-RE GGW-H20L YL05 (I:) (ATA) I 19:13:39 Media Type: BD-RE (Disc ID: LGEBRE-S01-00) (Speeds: 2x) I 19:13:39 Quick Erase: No I 19:13:39 Format Properly: Yes I 19:13:39 Format Size: Preferred I 19:13:39 Format With Full Certification: Yes I 19:13:39 Format Without Spare Areas: Yes I 19:13:39 Erasing Disc... E 19:13:39 Failed to Erase Disc! - Reason: Write Protected E 19:13:39 Operation Failed! - Duration: 00:00:00

While trying out various disc burning programmes, one (unknown) has write protected some of my DB-RE discs. Any ideas on how to remove the write protection?