The phrase "both 'fit to disc' and HQ for size" is quite vague. Maybe the OP should confirm that he actually did the following three things I mentioned at the same time: chose 8.5gb for disc size AND chose HQ for quality AND chose to burn to an image file.
Thank you for your replies, I did select 8.5 gb. I don't recall which I settled on but having dropped down both size options showed no difference as the time was well under. As for negative results, I burned it over night and inserted the DVD for a test play in a regular DVD player and a 'bad disc' type of message came up. As I did this just before heading to work, I did not notate any error messages but it may still be there at home (leaving work now).
The first time this happened last night I definately used 'fit to disc' as it was over the space for HQ (showed in red). I opted for both iso and burn to disc. After the failure, I tried to burn from the successful but a 'no disc space' message came up after some time while burning.
It may be worth noting that when I tried to burn from the project itself, it wouldn't even attempt to write after rendering but a write was initated during the iso burn attempt.
Edited by Dillon, 30 September 2009 - 01:15 PM.