I was running on an OS X Leopard install for two years and it got to the point where I modified so many system files and etc it just started throwing kernel panics all over, so I reinstalled Leopard today to start fresh. I heard CorePlayer is a thing again so I figured I'd try it, and what do you know before my G5 couldn't play 1080 at all but with CorePlayer it could. But the weird thing, I wanted to compare to VLC. And out of the blue, VLC can playback 1080p video without missing a beat or any glitchy video effects. It's a dual 1.8Ghz, so it should stutter 1080p under VLC and Quicktime, like it's done so for two years. But now, it's an easy task for my G5 and I have no idea how this is even possible.