They claim to have a "Dynamic Range Optimizer" that will adjust the dynamic range of the colors before going into jpeg compression. Says it's performed hardware. So I suppose it will be there for RAW images also?
RAW is simply a record of the sensor (i.e. "photosite") readouts without any modification.
Digital cameras take those readouts and put them through a ton of processing to come up with an actual image. For example, say you have a 12 MP camera. What you get when the shutter is clicked is twelve million readouts from photosites in a Beyer pattern - in other words, six million green, three million red, and three million blue alternating photosites. The camera's processing engine first has to take those readouts and interpolate them so you wind up with twelve million actual 16-bit color values (i.e. "pixels"). The processing engine then modifies those values according to the user settings you may have (white balance, contrast, color saturation, sharpness, etc.). Finally, the engine takes that image, reduces it to 8 bits per pixel, and compresses it according to the JPEG format, so that the resulting file size may be around 7-10 megabytes (my rough estimate).
It would appear that the "Dynamic Range Optimizer" would just be another processor function during the first of those steps. However, since RAW bypasses
all that processing, merely recording photosite readings in a special format for later processing on the computer, I don't see how DRO would affect it.