Which artefacts are guaranteed with frame interpolation? They can't be eliminated?
Either interlace or blend or halve resolution - these are your option with 24 to 30 fps interpolation.
Have you guys considered something like this, which comes from the xine list:
There are two steps to it: 1) The DVD plays at 30fps in the US. If it is a "movie", the DVD tags some fields as "repeat first field" so this causes a 24fps film it to play nicely on a 30fps display. A computer monitor is not 24fps or 30fps. 30fps, so rather than try displaying at 30fps, one tries to display at 24fps. xine correctly does this first step. 2) Once one moves to 24fps, the PTS values on the DVD mpeg stream are correct for 30fps, so would display showing a small amount of judder.
It doesn't sound perfect, but it should be an improvement, right? - Grant