I ran across a JVC receiver with USB input on its front panel. Does this mean that when playing a DVD on a computer that is connected to this receiver, it can decode the DVD in DD or DTS 5.1? Also, I just bought a Denon AVR-87 (AVR-1800) and just yesterday I happened to see an adapter thingy in an MCM Electronics flyer that converts USB to a Mini Optical output. Would this be what I need to get DD and DTS decoding of my computer DVD with my receiver, or will I need a dedicated sound card with its own digital output? I have a Sony 12x (or maybe it is a 16x) DVD-ROM. If I do need to get a sound card, what is the least expensive card I can get that would give me the optical or coaxial digital output that I need (and without being a crappy card-I don't really need an Allinwonder or a SB Live Platinum card). Thanks!