OK, here's the deal. Let's say I have a set of Logitech Z-680 5.1 speakers, they have optical and coaxial digital input, I have an old, run of the mill, Sage 450Mhz iMac, I say hmmm, the iMac does not have a coaxial or an optical output. So I search around and find the Edirol UA-1D USB Digital Audio Capture (http://www.edirol.com/products/info/ua1d.html), this little beauty has digital optical and coaxial out as well as in. So having the Edirol gadget and the Logitech Z-680s I hook it up to my iMac, BUT having only the OS X 10.2.2 DVD player. Now tell me, will this export 5.1 sound or digital DTS stuff or have I wasted my time. Any answers, suggestions, hate mail is welcome.