dvd not playing good on 2kpro

is there any fix for better dvd sound on W2k pro.? ....could be it needs some special drivers because 2k didn't have proper one's before dvd came about?

specs:
W2k pro sp4
P4 639 3ghz (15x200)
asus mb psrd1v
Motherboard ChipsetATI Radeon Xpress 200
System Memory 1024 MB (PC3200 DDR SDRAM)
Video Adapter RADEON X300 Series Secondary (256 MB)
Audio Adapter ULi/ALi M5461 High Definition Audio Controller
Optical Drive LITE-ON DVDRW SOHW-1693S (DVD+R9:4x, DVD-R9:4x, DVD+RW:16x/8x, DVD-RW:16x/6x, DVD-ROM:16x, CD:48x/24x/48x DVD+RW/DVD-RW)

What player are you using? Have you installed any codecs?

I use k-lite on my xp box, so you could try those on yours.

K-Lite Codecs

..I started with Windowmediaplayer then I tried Powerdvd and then I downloaded Realplayer...but the sound problem is with dvd discs..with the internet media I have the problem of the default player.. with all those players I downloaded I don't know which is default ..and I can't figure it...
..I tried codecs years ago but they didn't work..aren't those for internet media?

The codecs are for Windows, not the internet. Try them again. They are newer now and probably will help. They did for me and other members here having problems playing dvds on the computer.

Did you try to reinstall sound driver?

What issues are you having with the sound i.e. is it lagging behind the video,does it echo etc?
How have you set windows up to replay audio i.e. defaults or have you used the audio set up options to change the way its played back i.e. hall,chamber etc?
What speakers are you using i.e. one each side of the monitor [2.1] surround sound etc?
Try CCCP codecs and see if rendition is any clearer.
VLC player is quite good for DVD too.