There are two different PureVideo sytems and two different ways they work....After installation I found the the PureVideo function does not work out of the box. I had to download a PureVideo driver from Nvidia from their website under a 30 day free trial. After installing the drivers , the PureVideo fuction was enabled.
The old PureVideo is exactly what you described. It actually is NOT designed for high definition, although can be very helpful. Works on 6 and later series video cards, trial has an expiration time, can be used by any DirectShow media player (comes also as part of the TheatreTek player). I.e. you pay NVidia and use any way you want it.
The latest is PureVideo HD. It can be downloaded from NVidia and installed for free but can be taken advantage off only by using a certified player (e.g. PowerDVD). This version works only on the 8 series NV video cards. I.e. you pay the player manufacturer and only this player will be able to use it.
Diogen.
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