the digital out on your sound card would not be able to connect to your md player because the md player requires an optical digital out. you would need to get the daughter card or the live drive which has the optical out. the way you can do it currently is the analog way which is just connect the regular cable (minijacks) to the md and the sound card, make a playlist in winamp, WMP, RealPlayer, etc. and then start recording on your MD and hit play.