first i would like to ask if there is any website proving samples of high definition movies in wm9 or any other high definition format other than divx.

second, if your plasma HDTV has a resolution of 1024x768, (which is now currently available in the market) would it be possible to play a clip that has a 720p or 1080i resolution on it? would i be able to see the pic or i will be getting a black screen?

third, will a high definition DVD be playable on a conventional DVD?

N.B: yesterday i was surprised that a conventional DVD was able to read a high definition DVD was this case particular or it's commun?

Thanks for your help