.vob Files Problem

I downloaded Matrix Revolution 4.5GBand has few files named VOB , IFO , BUP.
i have the kazaalite codec and tried to play the VOB but i have no sound.I also tried DivX Player 2.1 but same problem . NO SOUND.

Doses someone know how to fix it or with what player should i see both video and image??

Thank you

VideoLan will play your vob's nicely (as it will everything else) :)
http://www.videolan.org/

Thanks man its working fine :) Peace