I'm looking for a DVD player software that is preferably available free and will play Dolby Digitial 5.1 WITH actual 5.1 ouput (To test my DVD-A2 5.1 DVDs, of course). Some of the players I've downloaded support 5.1 but only downmix it to 2.0. I need something that will let me use my 5.1 computer speakers as a real 5.1 speaker set, not downmix to 2.0 then upmix to 5.1 in the sound driver. Other than that, I don't need anything fancy feature-wise.

Any suggestions? If they're aren't any good free ones, I'll buy one, but I'd prefer something I can try before I buy it.

-Jayson