Read my lips... THESE CABLES ARE ALL 75 OHM CABLES...
As long as they meet these standards and are well constructed, it matters not what you call it. composite, component, coaxial digital, feddy or whatever.
An audio cable may not be the same as a video cable. It probably is, but it need not meet the same electrical chacteristics as the others mentioned in previous posts.
Somehow, I think you will be happier going out and buying the most expensive "component" cable you can find. Perhaps that is where your happiness lies.