Dosch Designs sent me two light probe files to test in Bryce 6 and they work just fine.

The ones they sent me are from this package:

http://www.doschdesign.com/products/hdri/Extreme_Hires_DVD.html

If you buy any of their HDRI files, make sure you get the HDRI - Light Probe versions.

Of course, this also means that their HDRI Finish program will make Bryce 6 compatible light probes:

http://www.doschdesign.com/products/hdri/HDRfinish_V1.html

Unfortunately, the program is Windows only, but the HDRI files are cross-platform.

AS, would you please add this to your HDRI listing for B6? Thanks.

-darlisa