I am confused about HDRI, what do people mean with this term.
More and more this term is mentioned and Poser 7 I heard that has HDRI.
What I know is that there is a limitation to 24 bit RGB colors, 8 bits per color is enough for the definition, was is not enough is the dynamic range. The variation of illumination is much bigger than 8 bits. If a part of the scene or picture is much more bright than the rest  this part appears saturated , bad looking and with white color.
To overcome this problem the 24 bit colors were extended using floating point instead of 8 bits and is supported by the tiff format.
The question that I have is, even you have textures and images of hi-range, the renderer is able to handle bigger resolution than 8 bits, what's the use if the final result is a jpeg image that is limited to 8 bits, or if you save as tiff or 16 bits pngs you will end viewing the image in your monitor that is limited to 8 bits. All efforts done for nothing!!!

Stupidity also evolves!