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Posted

Upgraded most of the schools computers over the summer to Win 7 and I'm getting reports that they are unable to play DVD's in the classroom. I've tracked the problem to the video splitter as removing this and connecting the PC direct to either the monitor or projector the DVD plays fine. The error I'm getting is

windows media player cannot play this dvd because there is a problem with digital copy protection

 

I've found that changing the splitter fixes this but is there any other way apart from replacing the splitters on all the problem computers?

Posted
Sounds like an HDCP problem; it's a newer form of DRM where the signal to the display is encrypted to prevent copying by splitting the video signal. This would be the exact thing it was designed to prevent. Either you use a third party media player (we use VLC) or hook the projector up as primary.
Posted

had the exact same problem with our splitters,

 

got image working on test bench worked perfect took to classroom no dvds play.

 

i rolled out vlc player to all win 7 machines and the dvd problem has gone away.

 

thats all you can do apart from replace the splitters.

Posted
Are the projectors connected with vga? We found some problems with dvds were fixed by installing the correct drivers. Sometimes we had to resort to windows vista or xp drivers.
  • 3 weeks later...
Posted
had exactly the same problem when we upgraded to win 7 last year, the problem was unpowered cheap splitters, when i swapped the spliter with a powered better quality one they worked fine
Posted
Well most of the splitters here are 8 years old apart from 1 which is new and this was the only computer which played DVD's so I knew the splitter was at fault.

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