Ok, in case you do not have a display which accepts 1080p24fps and/or 48/72 hz output, here's a little trick to enjoy smooth playback with HD-DVD and BluRay without the annoying 3:2 pulldown.
What you will need:
1) A display supporting 50hz refresh rate (almost every display)
1)A HTPC capable of HD-DVD/BluRay reproduction with Powerdvd Ultra playback software.
2)A sound card with analog outs (also useful in order to enjoy DD+, TrueHD etc)
3) The latest beta of the amazing Reclock software (http://reclock.free.fr
What you need to do:
1)Set the native resolution of your display at 50hz (pg 1280Χ720 50hz)
2)At the configuration of Reclock tick the following:
4)When you playback HD-DVD/BluRay with Powedvd a liitle clock appears below and right. Click it in order to enter properties. Then click media adaptation and force 25fps, by pressing locked:
Thats it! What essentially reclock does is to slightly pitch the sound of the movie so that the 23,976 fps become 25 fps. This way there is no need for 3:2 pulldown and its judder!
Remember that the same procedure (sound pitch speed up) is followed during the mastering of the Region 2 (Europe) DVDs which are 25fps.
So if you are from Europe you will love it, if from the US it might at first sound a bit strange, although you will love the fluidity of the picture!
A couple of extra tips:
-You can only do it with analogue output not SPDIF.
- Let Reclock to work its magic, it needs some time to synchronize perfectly.
-Don't go back and forth with the chapters all the time, it might confuse reclock. If that happens, press stop and play.