|
> My understanding is that most (if not all) anamorphic widescreen DVDs are progressive scan. Can anyone confirm this?
No.
The video format does not matters (i.e. wide screen or TV). What matters is whether the DVD is NTSC or PAL.
If the DVD is NTSC, it is encoded at 30 fps interlaced, so movie content uses 3:2 pulldown and you *MUST* use inverse-telecine to recover the original progressive movie frames (i.e. 24 fps progressive source).
If the DVD is PAL, it is encoded at 25 fps interlaced, and in general the movie is just converted from 24 fps to 25 fps by playing it 4% faster. In this case it is possible that the source interlaced frames are in fact the same as the progressive movie frames. But it is not guaranteed, because some editing could have taken place, causing a one-field shift. So it is still sdvised to do inverse-telecine, to be on the safe side!
|