Has anyone ever encountered an interlace/progressive pattern like this before: Two "progressive" frames followed by four interlaced frames. The DVD I'm transcoding is NTSC 29.97 fps, and I'm pretty sure that the source material was 23.97 fps. I've never seen a six-frame pull-down pattern before. I'm trying to encode this back into 23.97 fps h264, but I haven't the slightest idea how to deal with a six-frame pull-down pattern. If anyone is curious and wants to see what I'm seeing, this is from the region 1 2005 Dr Who series, season 1 disc 1. Anyone have any thoughts on how to handle this? -- Richard G Harman Jr <me+nospam at richardharman.com>