Ummm, are you sure you need to use buried vias? Most PCB fab houses don't support them; they are used on super-dense, high-tech boards, and you pay mucho extra $$$ to get them. They are not used on entry-level to mid-level boards.
If you *are* using PCB to design a 20 layer OC-192 router board with 10Gig diff co-planar waveguides and 622Mbps parallel busses, then bully for you! Let us know how it goes! Stuart > Hello > Is there a work-around to the absence of buried vias? for example,=20 > edit the drill file to remove a specific thru-hole, and copy this=20 > via into the file for layer 2-3? > Best Regards > Amr Bayoumi