Jerky DVD playback in VLC

[Hansomfiser]

Guys,
I have a fast computer with all the latest stuff, and Windows XP Pro SP2. I'm using VLC to watch clips/movies but when I'm watching original DVD's, the playback is a little jerky. It's like it's skipping a frame every fourth or fifth frame or something. Simply jerky playback.
But when I'm playing it in Windows Media Player, it's just perfect.

I have test last weeks Nightly Builds, and also activated the "higher priority" setting in VLC but nothing changes.

Also why is the image a little brighter/worse than in Windows Media Player?

This goes for all of my 40 original DVD movies.

Thanks for your help

[Hansomfiser]

Nevermind, it was fixed after upgrading my sound card and DirectX drivers.