What does the rest of your system look like? Do you have your computer hooked up to a receiver via SPDIF?
If you are using your computer to decode the DTS CD, then it depends on the software you are using. Cyberlink's PowerDVD, for example, has a built-in DTS decoder that will have no problems handling your DTS CD.
If you are trying to get the DTS information from your CD-ROM to your receiver via a digital connection then it gets trickier. I've had limited success with this.