use inverse 3:2 pulldown?

Should I be using this when capturing from digital cable? I have read what it is but do not quite understand. using ati aiw 8500 and mmc 7.7.0.1

As far as I can tell this setting doesn't work. I've checked it, but it doesn't do 3:2 pulldown on the captured material so it's quite useless to worry about. It doesn't have an effect on the captured video weither it's checked or not. 3:2 pulldown is supposed to make a pure progressive stream from an interlaced stream. NTSC interlaced content has 2 interlaced frames and 3 non interlaced frames out of every 5 frames in a 30fps source. <-- More about it It would be nice if the MMC setting worked for the 8500DV but it doesn't. :( Peace, SoulFX

not 8500DV 

I have the 128MB AIW 8500, does that make a difference

MMC's automatic inverse 3:2 pulldown will only work if the source is FILM. When capturing from TV, the noise level could make the film detection not recognize the film content.

So this shoould only be used when recording from a vcr tape or something along those same lines?