Whether or not you really see a big difference in picture quality will depend on your setup. For example, my TV is a JVC rear projection that upconverts all video to 1080i so that the use of component connections at 480p is not a very big difference in picture quality. And of course your dvd player should have progressive scanning if you want to capitalize on the benefits of component connections to begin with. Also, having the same manufacturer for your TV and DVD player tends to yield better results in general.

The point being that all of these others factors and more will determine the quality of your video much more so than any 'special' cables. The cables do no work, they are just a medium that signals must pass through. Hence, the better cables are the ones that preserve the 75 ohm signal without distortion. But this is precisely the problem with ALL component cables that use RCA interconnects. The physics of the RCA connection do not allow for the ideal 75 ohms to pass through unmolested by interference, regardless of how great the cable is or how much it costs. In fact, the implementation of RCA interconnects was never intended for video use. It began as an audio solution and manufacturers gradually implemented it instead of the BNC interconnect because of cheaper costs and user familiarity.