Please help - Does anyone know how to demux HD container ripped from Dish PIV622 DVR so that the demuxed video and audio can be re-mux in DVD format to be burned? Typical ripped files from PIV622 include: bm (1.16K) cat (560) tsp (8.9M) wtt (56K) Note the small size of the files due to its short duration, less than one minute. I suspected that the tsp and wtt are video and audio files respectively. Dont know anything about bm and cat. All files have no extension. THNAKS.