I'm sorry, but surround sound for headphones (defined as: HRTF implementations) don't work. What does work? Actual binaural recordings made with dummy head recordings.<p>Trying to reprocess 5.1 surround into either a) making it sound like I'm there, or b) making it sound like I'm listening to a 5.1 audio system, has never worked for me. Dolby Headphone is the least objectionable one of them, but it just mangles audio.<p>I wish someone would try to do Ambisonics-like calculations to try to bake 5.1 into working surround sound. I'd even pay for it (for, say, a faux passthrough driver on Windows that outputs to your default sound card).