Hello, I did a search but did not find anything that addressed my question. I just got a sweet deal ($31) on a Yamaha DDP-1 RF Demodulator for the AC-3 output on my laserdisc player. I know how to hook it up to my receiver using the multi-channel connections, but do I still need to connect the laserdisc player to the receiver via it's optical out and the red/white analog connections or does the AC-3 output everything? Thanks. T.