Once again, we thank you all for your comments and concerns about our article. Since this weekend, I have contacted Milori and had a fairly lengthy discussion with them. While the key person is traveling, I was able to catch him on his cell phone. From his initial comments, I have the following information to report.
1) Validity of Test - First of all, Mark was intrigued by our testing procedure and indicated that if the only variable is the DVD player, then this seems to be a valid method of comparison. As we indicated in our review, this is not an absolute measurement, but comparative. He seemed to agree that this is indeed valid.
2) Trichromat Sensor - Mark told me that it is very true that this sensor (as with many others including the Sencore) does not measure color within 2% at or below 10-IRE. I asked him the following. If the sensor can not measure color within 2% at 10-IRE, then how can it measure black and white and provide an accurate contrast ratio? Mark indicated that this was a great question, and offered the following response. The Trichromat Sensor is made up of four sensors potted into a housing. Three sensors are for color and the fourth gell mounted sensor is for measuring light (luminous) intensity. While the sensor does go "color blind" below 10-IRE and can not measure color below this, it is still able to measure light power and therefore, fully capable of providing contrast ratios, as indicated in their ColorFacts software.
3) Mark is still coming back from traveling and on a busy schedule, but he did assure me that he will review our article and our test procedure. From what I've described to him, he still seems to feel that while we are not providing absolute measurements, we are providing a "real world" application and showing a valid comparison.
Lastly, I did spend some time updating the article based on everyones feedback herein. For starters, I toned down the accusation of the "Contrast Bug" until we really know for sure. The other thing I added was the fact that our measurements were based on the DVD player being on the 7.5-IRE setting. To be honest with you all, the manual for this player stinks, and we honestly didn't know the player had this setting. We were aware of the chroma settings, and brightness and contrast settings, and did our best to adjust them, but we didn't know it had another entire setting for clipping the player at 7.5-IRE. I have mailed the sensor to Gene and he will be doing the test over at the 0-IRE setting later this week. But from what we've seen, it seems to not only tone down the black, but the white as well when switching this setting.
Anyway, we really do appreciate everyone's professional, proactive comments. If it's OK with you all, we will continue to monitor this forum and respond accordingly. In the mean time, we have indeed updated the article and thanks for all your input and comments.