"grahamilton" graham_hamilton{at}msn.com wrote in message
...
My understanding is that ;

If you are using an Nvidia graphics card and use the software from Nvidia,
then you might in combination with certain TV encoders receive an error
message when you update the software. According to an article on
TheInquirer
the software does checks to make sure the encoders comply with Macrovision
requirements.

In a note to the latest drivers, Nvidia says: "The BT868 and Conexant
CX25870 TV encoders do not support Macrovision. If your graphics card is
equipped with one of these TV encoders, then it will not support DVD
playback with our 41.09 drivers and above."
http://www.theinquirer.net/?article=8425


Diver version 44.03
TV Encoder Type CX25871 [GF3TI500]
PowerDVD 3

Used to play DVD's with no problems, now all off a sudden it doesnt
Error Details
TheTV Out port of your display card is not working properly.
This copy protected disc can not be played when the TV out function is
enabled.

WMP9 gives a similar error.

Not changed, updated, upgraded anything, so what the hell happened???????
tried unistalling then reinstalling nvidia 44.03 drivers, no joy.
will try download older drivers to try, but dont really want to do that.



Nvidia felt obliged to disable using TV chips which circumvented
macrovision. It's open to debate as to whether those card makers which
selected these TV chips did so for eactly that reason. I wonder if Nvidia
had recommended TV chips which didn't circumvent macrovision and they where
ignored?
I presume this is Nvidia's way of avoiding breaking industry agreemeents on
the use of Macrovision.

If the board makes did ignore Nvidia's tv chip recommendations then it's
their fault, if no such recommendations where made then it's both their
faults.