DL2 Audio Out

Will this be possible in the future? As an example, i have just done an out door movie for a client of mine. They had 2 x G8 projectors doing 2, 4 x 3 images for advertising before the movie, then they switched to the movie projector doing 16 by 9. I would love to be able to do this using 2 DL2's, (i know i can already using s video but read on). Instead of using the s video to take a feed from my DVD player, wouldnt it be great if i could load my DVD Movie into the DL2s and take an audio feed from the DL2's so when i play that file back i have the audio as well. Could this all ready be acheived being the internal computer has a sound card in it already????? Just means there is one less thing to set up, i.e. DVD players etc etc