So far I have tried Audigy and Philips Acoustic Edge and for some reason I can't get a DTS Encoded wave to play through the S/Pdif out into my receiver that has DTS decoding. Is there a card that I can buy that will allow SoundForge 4.5 to output through the digital out to my receiver? I don't think your sound card is available any more Jon. Any suggestions. By the way... even Philips couldn't help me after 40 minutes on the phone with tech support. Thanks for any help you can give.... Bob