I'm not sure what you mean when you said "...rca". RCA jacks can put out composite or "component video" depending on what type of video circuitry is wired to them inside the DVD player. All I can say is RTM(Read The Manual)on the DVD player, find out exactly what type of signal comes out of those "RCA" jacks on the rear of your DVD player, then decide. If they're "component video" jacks, use them, they're the best in terms of picture quality. S-Video is #2, & plain old composite video is #3.
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