Hello,
This is probably the solution for computer and dac connection. In my Dac (Pink Faun 2.24 Dac) and my computer (windows 7) it works like a dream!
It can be build in in almost every dac. And in the computer it's just plug 'n play.
http://pinkfaun.nl/portal/productaanbod/dac-streaming-audio/1440-i2s-bridge
greetings from Holland.
Froex