you are already using AnyDVD for on the fly decryption. you have DVD neXt COPY for doing the dvd copy and burning. as already suggested you have two really good programs.
i use dvdfab platinum for dvd decryption, ripping and imburn for burning.
since you already have AnyDVD try dvd shrink for ripping and ImgBurn for burning. or Slysoft recommends using CloneDVD with AnyDVD for ripping and burning.
i would suggest converting the flv files to avi and burning a cd-r for viewing on a standalone dvd player which is DivX compatible. the process to convert to dvd would take too long and the quality would be horrible anyway.