Originally Posted by darkfirebg
Tiihokatti, thanks, i found similar DAC around here for 15 EUR and will give it a try!
That'll work, but it'll just be upmixed stereo. Also, there's a risk you'll get buzzing from cheap DACs, depending on which one you got.
Get an optical->coax converter instead, and you can send real 5.1 surround sound to your DVD system. And there's no risk of sound quality degredation, it either works perfectly or it doesn't work at all.