Hi, i am new to the forum, and i tried searching the past thread if there is anything similar, but there was none. I hope this is the right place to ask this, since i am at a loss.

Recently i just purchased a whole new computer rig, it comes with a logitech Z5500 speaker, which was said to be DTS and dolby ready, am i right on this? So i got myself a SPDIF cable and connected it to my motherboard. I am not running on any soundcard as yet. As of now, i have been able to play DVD with Dolby with no problem, the problem is when i am dealing with DTS. I have very limited files with DTS, and i tried downloading one of here

http://www.itrax.com/Pages/HelpFAQs.php#1

I tried playing it with WMC, PowerDVD and VLC. WMC and powerdvd just gave a distorted noise, with VLC the DAC was able to detect the dts signal but no sound was produce. What am i doing wrong exactly?

I don't know what you are doing wrong but I do know that you need to be careful with dts sound because if your player isn't set up for it you can ruin your speakers. Your dvd player might not be capable. I lot of times when they say things are "ready" they actually mean part ready and you are expected to buy more stuff to make it fully ready. Like I said, I'm not sure but thought I'd better warn you about possible speaker damage.

These files listed there are DTS encoded, but the sample rate is 44100 hz. Soundcards normally have 48000 hz output. The only way you can play these are to burn them to a cd and if you have a cd player with digital output you can connect it to the speakers.
Since DVDs with Dolby Digital play fine via SPDIF you will have no problem with DTS DVDs.