I have these two AVI file that i want to convert a...

I have these two AVI file that i want to convert as SVCD. The problem is that i want the best result. This is probably the best AVI that i ever seen. Quality is amazing and i dont want to spoil it. Anybody can gave me some advise on how to do it so i dont loose to much quality???

This is HQ, High Resolution,320kbps, 2pass.

Dont know yet if it is DIVX or Xvid cause download is not finished.