Roxio 6 dvdbuilder

i have some dat files which i need to burn when adding the dat files, the dvdbuilder says it doesnot match the standard requirements, but if i set the encoding to pal it is creating vcd completely, but if i select as ntsc the whole is not burnt only part of the dat files is burned, and the encoding framerate is 16 frames per second or less, how to increase the encoding speed so as to not waste time .