ive been able to download some
amazon vod using this syntax:
rtmpdump --verbose --flv output.flv --protocol 2 --host cp79203.edgefcs.net --app "ondemand?ovpfv=2.1.4&auth=da.alaYdwbJbFbXdOdodHdd bhbabTdKdjce-bngs5z-iYG-KvI1Cyt-k7scjhnfm9m3qckVpXpbtWoSk5jfl3pTlRscjcn5mcmaqbjdo5 qTsen9lTj5mWpUlTtWj8oVm9m9qekSohp8&aifp=v001&slist =ans/107536/h264/HBO/2/-ep/452/p39/ics/p/" --playpath mp4:ans/107536/h264/HBO/2/-ep/452/p39/ics/p/7d43426a-fd92-4c85-a36a-09635932402e-094.mp4 --swfVfy http://ecx.images-amazon.com/images/G/01/digital/video/streaming/3.56-0/UnboxScreeningRoomClient._V175683007_.swf