RCA is left/right stereo only. The optical cable, assuming your stereo/sound card can handle it, is how you get Dolby Digital from your PS2. So, it's going to sound better because (among other reasons ...

I have recently purchased the LG 478900 TV. It looks great, but the only problem I have is that the video is running slightly delayed from the audio if I route the audio direct to my amp from the ...