I was somewhat sceptical about my chances with a dual layer blu-ray disc. In the past I've found it almost impossible to reliably write to dual layer DVDs, so I didn't hold much hope for dual layer Blu-ray.
I have now burnt 5 discs and all have burnt successfully. I've re-read the discs and that has worked.
So far so good. Even if the odd disc does fail, that is to be expected, and with 5 out of 5 discs burnt successfully so far, I'm optimistic.