Damn Damn ..... sorry for the mess and apologies again to the thrillfactor for editing by mistake and then deleting his post.
He was mentioning the K-stereo box from Bob Katz' :
www.digido.com
for dvd, if you would want to convert those tracks into 5.1 mixes without redoing them, you might wanna check out the stereo to 5.1 option for the TC sys6000. The algorithm can be 'hired' from the sys6000 website. Might be interesting if you can get your hands on a sys6k.