I played Chang here under the lights here. I think that was '91. Another good match. I've played a lot more good matches under the lights than I played bad. You tend to remember some of the bad ones unfortunately.
I tell students, 'If you are learning from YouTube I almost don't want to teach you because what you learn from YouTube it takes 10 times as long to unlearn.' They do an approximation of the centre of the note, an approximation of the interpretation, a cloned version.
So DeCSS didn't introduce anything new for pirating and had already been available.