Originally Posted by darklordjames
It will look like s-video.
Does your display do VGA? If so, you will get far better quality out of it that way, once you grab a DC VGA box. 480p Dreamcast was quite nice.
I second this opinion. In fact I would go as far as to say that the dreamcast thru VGA looks quite a bit better than either the wii, gamecube or ps2 hooked via component.
In addition, I'd like to add that using an external scaler such as the DCDI found in your receiver will introduce a fair amount of lag over connecting to your HDTV directly with a 480p (VGA) connection.
What to do if you find yourself stuck with no hope of rescue:
Consider yourself lucky that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your present circumstances seems to be more likely, consider yourself lucky that it won't be troubling you much longer...
-- Excerpt from the Hitchhiker's Guide to the Galaxy.