[Amir Rhi]

Hi
Your question is my question also and i look forw the answer. even i tried to extract i-frames by ffmpeg directly( not in another program) and i could not . just i found that if you like to convert all frames to i-frame, the command would be:
ffmpeg -i -vcodec mpeg2video -qscale 1 -qmin 1 -intra -an output.m2v