DVD playing problem (continuous playing/freezing XP Home & Vista)

[augusto_the_king]

Hi guys. Do you have a beautiful weather as I do? I hope so.
I have a problem with playing DVDs on my computers. I'm talking about a WXPHE, a WVHP and two WXPP. All systems were recently reinstalled on the computers from the scratch. I mean the hard disk was formated and then reinstalled everything using only original software. The device manager says there are no problems with the drivers, having not even one yellow exclamation mark.
And now to the problem. Whenever I want to play a DVD, and I'm talking even about the originals, a strange thing happens. The "playing" in just a continuous succession of freezing moments and playing moments in which each one of them last around a second, playing is somehow longer than freezing. So it's like freezing, playing, freezing, playing, freezing, playing ... and so on. Only on one system, a WXPP, the DVDs run without a problem, perfectly, and it's not the newest computer.
For playing the DVDs I use VLC's last version. What's missing from the other three?
Thank you for any help.