> Nowadays, all devices support full duplex, so nobody bothers to mention > this feature. hmm - Edirol (i.e. Roland) UA-1D does *not* me thinks (nearly bought it, found out just in time :-) I mean we are talking dull duplex via digital in and digital out (as per USB<->S/PDIF notion anyways)... this thing appears to, however: http://www.winic.com/2178sp.htm just need to find out how to buy it (company in Taiwan - I am in Australia). Kind regadrs, Leon.