Hi Cynthia and Support,
My PCI/SATA card is ALI 5281 (5.0.2.6 drivers), I was going to re-install this or find a later driver until you mentioned your own experiences with this MBO.
In the past I have never been able to get the EZ-RAID working as an extra SATA connection despite removing the jumper so won't be trying that again but hey you put me on the right track, my Blue-ray drive was on the PCI/SATA card with one of my extra hard drives on the Jmicron, well I just swapped them over and hey it now works ok!!!!!!
At least I think it does, the CPU activity is not zero but is only a few percent, but the writing speed to another sacrificial BD-R is 3.9x - WOW!
The hard drive that got moved to the PCI/SATA card has now slowed down to SATA 1 speed but I can live with that..
Support, please look over my log file here and let me know if you think it's ok, I only wrote a GB of data on this short test, I hope it's the same when I next write a full disc.
I 12:38:49 ImgBurn Version 2.4.2.0 started!
I 12:38:49 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
I 12:38:49 Total Physical Memory: 2,096,116 KB - Available: 1,619,668 KB
W 12:38:49 Drive C:\ (FAT32) does not support single files > 4 GB in size.
I 12:38:49 Initialising SPTI...
I 12:38:49 Searching for SCSI / ATAPI devices...
I 12:38:49 Found 1 DVD