From
here.
TurnLeft
#TurnRight
#Turn180
If TurnLeft don't work, add # to TurnLeft and erase # from TurnRight.
Fun fact: # "turns off" a script in AviSynth.
Here is an
awesome thread on how to edit with AviSynth (like getting side-by-side view for DS videos.
If VLC fudges up the snapshot, use VirtualDub instead. Load your video file (or AviSynth file), go to a spot that you want to get a snapshot of, press Home, move 1 or 2 frames into the video, press End, then go to File -> Export -> Image Sequence.