I have a large Movie library and most are 1080p or 720p. I have no luck playing 1080p on my machine, and only a some 720p files will play. Usually older 480p videos work fine so I used Handbrake to convert a 720p film to 480p. It still studdered and glitched out. The file size of the 480p version is larger than the 720p. Perhaps I just don't understand all of this or the many settings in Handbrake, or both. But what I do understand is that people seem to have tons of luck playing HD videos on their G5s, but I can barely make off a DVD copy. Any help is appreciated. Here is a crappy recording I did to show how the playback quality is on the 480p movie I converted from 720p in Handbrake. My machine is a Early 2005 DP G5. 2x2.0GHz G5s, 4GB DDR400 RAM, 120GB SSD, GeForce 6800 ULTRA, running Leopard and I am using Coreplayer to attempt to watch these. Dustin --- Post Merged, May 1, 2017 --- To be clear as I am sure some of you was my other post about Coreplayer freezing, and it being a network issue; these files I am using to test with are on my SSD.