xacti_hd2000_dogsample20090207_2a.mp4 is a sample that was published on nvnews.net, because it can't be played back with mplayer -vo vdpau -vc ffh264vdpau in real-time. It is a nice real-world high-bitrate camera sample and also shows that vdpau can be used with lavdopts skipframe=nonref;-)