I doubt whether this thingie will pass DD/DTS signals since it is a DAC and has not got not a DD/DTS decoder onboard. In order to connect your pc to a home theatre system to be able to play DD/DTS audiostreams you will have to look for something like the Creative DTS-610 Home Theather Connect., which is sadly enough (and why not, Creative?) not available worldwide.
www.creative.com/products/product.asp?ca...55&product=14191