OK. Thanks. The following is the info from ImgBurn Disc is a Memorex BD-RE SL 25GB.
HL-DT-ST BD-RE BH20N C106 (ATA)
Current Profile: BD-RE
Disc Information:
Status: Empty
Erasable: Yes
Supported Write Speeds: 2.4x
BD Disc Information:
Disc ID: IMATN-E_2-01
Disc Type: BD-RE
Format Capacities:
DT: 0x01 - NB: 12219392 (0x00BA7400) - TDP: 20480
FT: 0x00 - NB: 11826176 (0x00B47400) - TDP: 12288
FT: 0x01 - NB: 11564032 (0x00B07400) - TDP: 2048
FT: 0x30 - NB: 11826176 (0x00B47400) - TDP: 12288
FT: 0x30 - NB: 11564032 (0x00B07400) - TDP: 20480
FT: 0x30 - NB: 12088320 (0x00B87400) - TDP: 4096
FT: 0x31 - NB: 12219392 (0x00BA7400) - TDP: 2048
I 15:29:29 ImgBurn Version 2.5.0.0 started!
I 15:29:29 Microsoft Windows 7 Home Premium Edition (6.1, Build 7600)
I 15:29:29 Total Physical Memory: 3,407,032 KB - Available: 1,632,900 KB
W 15:29:29 SPTD can have a detrimental effect on drive performance.
I 15:29:29 Initialising SPTI...
I 15:29:29 Searching for SCSI / ATAPI devices...
I 15:29:29 Found 1 BD-ROM/HD DVD-ROM and 1 BD-RE!
I 15:32:43 Operation Started!
I 15:32:43 Device: [1:0:0] HL-DT-ST BD-RE BH20N C106 (E:) (ATA)
I 15:32:43 Media Type: BD-RE (Disc ID: IMATN-E_2-01) (Speeds: 2.4x)
I 15:32:43 Quick Erase: No
I 15:32:43 Format Properly: Yes
I 15:32:43 Format Size: Preferred
I 15:32:43 Format With Full Certification: Yes
I 15:32:43 Format Without Spare Areas: Yes
I 15:32:43 Erasing Disc...
W 15:32:45 Potential 'WaitImmediateIO' Deferred Error - (1/4) - Medium Not Formatted
E 15:32:47 Failed to Erase Disc! - Reason: Medium Not Formatted
E 15:32:47 Operation Failed! - Duration: 00:00:04