>rendered in mpeg2-DVD from Premiere and allowed to transcode in Encore
That seems "odd" to me... when you render MPEG2-DVD from PPro, it is supposed to be DVD legal... which would mean to me that Encore should NOT transcode again
But, do as Stan says... FREE http://www.imgburn.com/index.php?act=download to write files or folders or ISO to disc for DVD or BluRay (send the author a PayPal donation if you like his program)