Hi, simple question: Soundblaster USB MP3+ is stereo soundcard but it has optical digital out. Can it output bitstream from DVD too? (from computer's internal DVD player) On Creative's site there is note about AC3 etc but I am not sure about it. Any proffessionals here? If not what simple USB card would be best to do this task? It has to be optical. Or do I need audigy 2 zs for that? Thanks.