Convert Vc1 to xvid via AviSynth -> colors slipped ??

[housemusic]

Hi,
im new in this forum. my english is not the best (im from europe) but i hope you can help me.
i realised an avisynth-script to load an m2ts-file with VC1 video into virtual dub. i thought "yeah all fine" but now i see, that the color red shifted some pixels (approx 100, constant) up. if i play the original file with VLC there is no problem. if i play the avs with the media player, there is the same problem.
what could i do to fix? i tried as codecs: ffdshow(DXVA) and MPCVideoDec. both same problem. Microsoft codec doesnt work.

here my settings


look over the heads, there are red areas. its the same picture if i use windows media player. if i use VLC media player, there is nothing linke this so i think its the codec or its a wrong avisynth-syntax.
whats wrooong??


as i said: i use win 7 x64
source is m2ts (VC-1 i think)
i used directshowsource("data.m2ts") on avisynth

hope you can help me

edit:
i cant play the data.m2ts directly with media player. error : no codecs.
same if i rename to data.ts.