Homebrew PCBs

Hi guys!

I''ve seen this: http://c4r0.skrzynka.org/_hv/index.php?page=lasers/cnc2

I was thinking: why don't use this kind of laser to burn the
photoresist board. After you develop it and ready for the etch. I
knoww the CO2 laser but it's more expensive than a simple burn laser
from a DVD burner.

Any idea? 

Bye!