Wilbert, Bedankt voor het antwoord. However, your method describes a way for me stream DTS sound via the SPDIF connection on my Audigy to my surround receiver for decoding. I was looking for a way to get the decoding done by software and have the DTS-filter/codec output the sound as 6 seperate channels on my Audigy. This, namely, is exactly what WinDVD is doing. When playing a DTS-Divx movie in WinDVD Platinum, I get 6 channel sound on the 3 connections on my Audigy. From there it goes to the 6 channel input on my receiver. I prefer this method, because now all types of sound in DivX movies (stereo MP3, AC3, DTS) is always PCM-output via the Audigy to my surround receiver. I thought if WinDVD can do it, it can't be impossible, but have been unable to find any codec/filter that can do it similar to AC3-filter. Belgarath