With a precursory glance at TiVo Desktop Plus and pytivo, reading some of the FAQs on both, I really haven't found the answers that I'm looking for. I have an extensive collection of MP4 video, some HD some SD, some with run of the mill stereo sound, and others with DTS tracks. With either the Desktop Plus or pytivo can I move this collection to the TiVo HD hard drive provided I have the space? Is it possible to preload an external hard drive with video and just connect it to the ESATA port on the back? Can/Will the TiVo bitstream DTS and DD 5.1 to my receiver from those files?