Hi, Does the PS2 need a proprietary Sony optical cable to output a digital signal? I have a regular optical cable running into the LD input of my Yamaha RX-V1, as well as the S-Video out of the PS2. The only way I get sound is with the S-Video AND L/R RCA's. My TV has component in, as well as the Yamaha. Do I need to use a PS Component cable, in addition to an optical cable? I'm TRYING to get Vice City in DTS. Thanks!