Yeah, all of that matters. The theory is, unless you have a device somewhere that "upconverts" (specifically to some type of output up to another, like S to component), you have to keep the same signal type from source (cable box, TV, DVD, CD) to terminal output (receiver, TV). Like, if you want to watch DVDs, you need to have (for instance) the same audio cable/out type, digital optical or digital coaxial (big heap debate over which is better, I'm preferential to optical for DVD and coax for music, if only because of potentially bogus claims of crisper sounds from optical and warmer sounds from coax, but really it's to save both types of outs and only use one of each) going from DVD to receiver. So, you gots two seperate cables of the same type (I'd try to go same brand, but it ain't necessary). If your DVD/CD player does 5.1 analog and your receiver accepts it, it's pretty groovy to listen to media recorded in "true" 5.1, all you need is all your extra RCA cables, 3 pairs to run from each speaker out to the receiver. I have TCM's Temple of Boom in 5.1, and it excites me in every way imaginable. There are other audio formats, but those are all you need audio-wise for the DVD/CD player.Originally Posted by Thrrrpptt!
Video...well, I haven't delved into the HD market yet, so I'm all ears about that tip. HD is GAWD (with DVI in close second) obviously, then RGB/component (tri-cable video) is next, then S, then RCA composite (yellow cable) is last. If you have old or un1337 concoles or an old VCR or whatever, they canget by on older cabling, you just have to bear in mind that same cabling type must eventually make it to the terminal interface (unless you have an upconverting device somewheres).
Somebody through down an awesome link for cheap cabling awhile back. Cabling is a red herring and even on the cheap it will cost some.