switching private :) > First of all, I think this discussion is beginning to turn off-topic. > Maybe we should keep it in private. switching private :) > I am afraid I cannot. It belongs to a Windows app and I do not have > access to their version control. Anyway, it is quite simple: just check > for black pixels (I think it is 0xFFFFFF colour values) during half the > first image line. If [almost] all samples are black, then it is an odd > field. > > Sorry for the lacking help! Hope this helps, feel free to email as much > as you like. Sharing experiences is quite interesting. thank you for the help, you have shed a light for me on a few topics, I am now sending the question to Conexant through our channels, on whether there is some other indication... as regarding to SW algorithm - the line is not entirely black, it has some kind of noise, which is quite unpredictable, just as a "white noise" in night capturing :( I will keep you updated in case I find something, again thank you for the help! Michael