thx for the replies
now one more question... Im using the script below..the picture is fairly sharp, but there are blocks around the edges. I tried that mergechrome and mergeluma, but the picture is too blurry. what else should I used to remove these blocks. Thanks
AviSource("C:\test.avi")
ConverttoYUY2
LegalClip()
GripCrop(352, 240, overscan=1, source_anamorphic=false)
GripSize(resizer="BicubicResize")
SpaceDust()
Sharpen(0.7)
FluxSmooth(temporal_threshold=7, spatial_threshold=7)
TemporalCleaner(ythresh=5, cthresh=10)
BlockBuster(method="noise", detail_min=1, detail_max=7, variance=0.3, seed=1)
GripBorders()
LegalClip()