Hi,
I have pretty much the same setup with Creative X-Fi surround 5.1 and Z5500 and can't get to out put on DTS
i have set the sound card to default (SPDIF OUT) and ran the Audio settings on VLC to
Direct X out
Use SPDIF
Auto for Dolby Detect
Creative SPDIF Out (Defaut Sound Card)
i have 3...