echo >&2 " - xvidvhq = AVI, very high quality encoding, Xvid codec, 2 pass encoding (default)"
echo >&2 " - xvidhq = AVI, high quality encoding, Xvid codec, 2 pass encoding"
echo >&2 " - xvid = AVI, fast encoding, Xvid codec, 2 pass encoding"
echo >&2 " - xvidvhq = AVI, very high quality encoding, Xvid codec, 2 pass encoding (default)"
echo >&2 " - xvidhq = AVI, high quality encoding, Xvid codec, 2 pass encoding"
echo >&2 " - xvid = AVI, fast encoding, Xvid codec, 2 pass encoding"