How to convert DVD to a vcd



any body knows freeware software to convert a dvd to a vcd format ??? the format may be dat or mpg or any format that can reduce size of dvd ???
and aslo i want to wt r these terms

  1. super vcd
  2. mini dvd
  3. udf cd
  4. hybird cd
  5. mixed mode cd
  6. wma cd

i saw few more things on nero …that i dont know
just need a clue atleast

lg to audio cd

is that option from which we can convert a dvd or a vcd or mp3 to normal audio cd ??? if not then tell em how can i convert it???
thanks in advance