I was wondering about the question of what gives image depth after I realised that some of the scenes I've seen on digital look pretty 3D too, and they were brightish scenes too - one was during the opening of Final Flight of the Osiris, and the other was when Woody was getting a makeover in TS2. I'll be using the Osiris as a demo clip on the Don's (Godfathers) CRT when I see it so it will be a good comparison as I'm quite familiar with the scene. Neither of those two scenes I mentioned required a particularly high contrast ratio as far as I can tell, so I had an idea - if we could get a small list up of these scenes what I will try to do is take a screen capture of the scene in PowerDVD and WinDVD and use a paint program to measure the digital range as best I could (I.E. black will be D16 as R0.G0.B0, white D235 as R235.G235.B235.) and then see how that translates when projected by setting up a smaller screen so I could then run my light meter over it and measure the highest and lowest lux in the same image. If the same image has a 3D look on both CRT and DLP we might be able to quantify it maybe, if we can get an image that looks 3D on one but not the other, then that will help too I would think. I've enclosed an example as a jpg (I'll use bmp as it's more accurate) and left the AR as is because resizing to 1024 x 576 wouldn't allow me to post it. bmp would be too large as well. If anyone thinks this idea is fundemantaly flawed or if there is a better way of doing it then I'm all ears. Gary.