I'm planning on receiving a low key HTIB (something less than $300, probably something from pioneer because i trust the brand and it comes in silver which will match all of my PC components) for use as a second/bedroom system in conjunction with my PC. My PC currently has the original Sound Blaster Live! Value sound card, not one of the newer 5.1 versions. It does, however, have a digital spdif output. Will this pass a DD/DTS signal from the computer to the receiver from the computer while watching DVDs in PowerDVD? Or will I need to buy one of the newer 5.1 Sound Blaster cards? Thanks.