It can be done, but it isn't clear exactly how it is accomplished, and there are display settings that must be changed...
First... Set Display card settings... I used NVidia Control Panel:
Adjust Video Color Settings (Advanced) for Full Display 0-255
Note... With your Display set for 0-255 Your Primary display may not show difference between 235 and 255. However, if you look closely a Reference Monitor set for YC waveform WILL SEE the difference between 235 & 255. Note that 2nd output (HDMI output in my laptop) may see the difference between 235 and 255... Disregard the Program monitor NOT seeing difference between 235 and 255..
Premiere CS6.... When you are done with the edit... Export timeline (or piece of such) via ONE of these THREE SETTINGS:
Import those files into Encore and burn as normal... Disregard that your program monitor is not seeing the difference between 235 and 255....
DVD's and BR's burned this way WILL SHOW 0-255 levels!!
Priemiere CS6 Monitors WILL NOT show the difference between 16-235 & 0-255, But the Waveform Monitors WILL Show the difference between 16-235 & 0-255, Even with Display card set for 0-255. (this also explains a color difference in the image, which is an altogether different subject! :(! )
Camera Capture Card outputs Might show 0-255 levels if 0-15 & 236-255 clips are disabled--Check your Capture Card Settings!)
Encore CS6 monitors WILL NOT show the difference betweeen 16-235 & 0-255, EVEN WHEN the input per-rendered formats Support 0-255!!! But WILL STILL BURN 0-255 Levels, Based on the Pre-Rendered formats indicated in prior post... Camera Capture Card Outputs Might show 0-255 levels if settings described in last paragraph are set correctly--Again check your Capture Card Settings!)
Yes, it is confusing.... but it does eventually work!