If you want high quality picture from your PS, PSone or Playstation 2 then the Sony S-video cable is the way to go. It improves the image heaps by making the image look 10× the quality, it is defiantly worth the money. The writing is a lot clearer and the colours are brighter and more colourfull, I found that Spyro the dragon on Ps/Psone made such a difference with the s-video cable.
Your TV has to have a S-video cable on it other wise this cable won’t work so check before you buy.