Originally Posted by echoesian
How do you find comparing between 24Hz and 50Hz, which is better? How do you really notice the additional frame? I can't really notice that....
I haven't really tried 50Hz. Ideally, you want your display refresh rate to be the same as your media, or an integer multiple of it. Because most BDs are mastered at 23.976 fps, the ideal situation would be to set your display to be 23.976 Hz so you would have a perfect 1:1 correlation. Or if you could set the refresh rate to 47.952, you'd have a perfect 2:1 correlation where each frame would be displayed twice.
50Hz is actually pretty far off from being an integer multiple of 23.976. Most frames would display for 2/50ths of a second, but some frames would display for 3/50ths of a second pretty regularly. I haven't crunched through the math, but the odd one probably happens once or twice a second.
If you can't see the duplicated frame, good. It may drive you crazy when you do see it. Depending on what is happening, you may not notice it, or it may jump out. I notice the duplicated frame particularly in panning scenes; things are panning smoothly, and then there is a hiccup, followed by more smooth panning.