Urgent: Unable to play DVDs all of a sudden...

Soldato
Joined
30 May 2009
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Maidenhead
Hi guys,

I was watching Oceans 11 on DVD on my PC, then went to play an .mp4 video file.

After playing the file, I wanted to continue watching the DVD, Windows Media Player said this: "Windows Media Player cannot play the DVD because there is a problem with the digital copy protection between your DVD drive, decoder, and video card. Try installing an updated driver for your video card."

Now, what would have caused this to happen?!

Using Windows 7 Pro by the way. I don't have any DVD software installed, I never needed it before. What is going on?!
 
Have you installed any codec packs at all? I think DVD uses an MP4 codec so it sounds like opening your mp4 file caused it to do something odd, or that codec has tried to set itsself as the DVD codec.

Have you tried to see if it works in vlc?
 
Have you installed any codec packs at all? I think DVD uses an MP4 codec so it sounds like opening your mp4 file caused it to do something odd.

Have you tried to see if it works in vlc?

Just uninstalled my Shark007 Windows 7 codecs, and reinstalled them.

Going to test now.

Update: It works. Must have been the .mp4 file that messed my codecs about for sure. Never playing those again!
 
Ninja-quick post there :p.

edit: ffdshow tryouts are great codecs which might help you instead of the Shark ones. There's also a guide on how to upscale your videos with it to make them look much better.
 
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Glad it's working :).

FFDShow should work for DVDs (that post is targeted towards them) so it might be worth a try. If worse comes to worse you can just uninstall them anyway.

It's been a while since I've done it but even if you have Windows 7 x64, provided that you use Windows Media Player I think you need to use the x86 files, because media player runs in 32 bit mode as standard.
 
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