Robert_Charlton - 8:23 am on Sep 23, 2013 (gmt 0)
bill - Quick response for the moment, just to say that it's a weird time in history to be contemplating DVD distribution... particularly as the video will probably be shot in some sort of hi-def digital format, or combination of formats.
DVD, which probably has substantially more market penetration than Blu-ray does and is probably the logical disk format in terms of cost and hardware, is a semi-anachronism because it is standard def, which you will need to up res to play back... but, ironically, you will need to down res it to encode it for the DVD.
Blu-ray would be more appropriate given current camera technology... but Blu-ray has gotten stalled; the landscape is changing rapidly; and the future of disk formats is in doubt. It's not even clear that Adobe is continuing its "Encore" disk authoring software in its new cloud-based software model.
It could be that for "mini-documentary commercials", web distribution will make the most sense. Thus, NTSC/PAL/SECAM may never enter into it. Much more to be said.