Oh, I think, it would be okay, to have one dupe in 1000 frames...
I think there are more important things to do!
I have made a script, that simulates this kind of 24fps (30i) to 25fps PAL conversion.
It maybe helps to have a well defined input source for comparing the output...
Code:
loadplugin("c:\dvdrip'in\dgbob.dll")
avisource("any progressive video.avi")
assumefps(23.976) #assure 23,976 fps
selectevery(2,0,0,0,1,1) #telecine
separatefields() #
selectevery(4,1,2) #
weave() #re-interlacing
dgbob(order=1) #starting conversion with deinterlacing
converttoyuy2()
convertfps(50) #60p -> 50p
separatefields() #
selectevery(4,0,3) #
weave() #re-interlacing
EDIT: I can't use your new script!
It says: "there is no function named YV12layer"