i have "bad" sample
http://www.mediafire.com/?y4tej0guuns
it indexes ok, but then i load avs in virtualdub, virtualdub stops responding and after 20-25 seconds virtualdub shows green frame, then i go forward frame by frame, i see correct picture at frame 7. and from frame 7 i step backwards and some frames that were previously green, now they correct.
sorry for bad english
EDIT:
ffdshow don't understand this sample too...