I've been using Tmpgenc and Main concept for about a year now with few problems but recently installed Cinema craft encoder to see if i could get any improvements in quality and speed, and the answer seems to be yes,BUT the problem im having is to do with 23.97fps AVI conversions,when i use the 3:2 pulldown option i get a sudden drop in picture quality as the picture seems to become broken up within the horizontal lines,its not too noticeable but its very annoying as everything else looks good up until 3:2 pulldown is set,if i encode at 23.97fps with no pulldown it looks very good(but of course it cannot be authored) and if i encode at 29.97fps it looks good(but of course th speed is wrong) add 3:2 pulldown and the lines are back, if anyone knows what i'm missing could you please tell me