What camera/raw processor?
¿CSwhich or what?
Do you have a single shot for comparison, using fill/recovery?
How many pixels was it?
...looks better than most HDR pics.
The camera is a nikon d80 (10 mp)
CS3 ACR
No comparison shot but a good idea
The tiff print file was 255 mb. The work file much larger
edit: here's a snip showing some of the color noise