Can somone enighten me to how optical works, or give me some web sources, because my searches are not really coming up with much. The application that I plan to use it for is recording from portable CD player to MD player. I assume that is toslink but I am not sure. I think I need a cable that is round at both ends, ie. not square on one end and round on the other. I have also been told that optical is better than a 1/8" to 1/8" connection. I know that what I am talking about isn't exactly hi-end, but any input would be greatly appreciated.