3ds Max :: Render To Texture Over Saturated?

i'm experimenting with texture baking / render to texture. I've setup a simple scene with a box and a sphere and a omni light, no exposure, mental ray. I've rendered to texture the "complete map" for both. Then i've switched to default scanline renderer, put the baked materials to 100 self illumination, but the result (on the right) is more saturated and darker of the original render (on the left).

I've tried with different setups, but the result is the same.