Hi, I posted this to the Mac Mini forum without much response, so thought I would try here. Earlier this year, I finished ripping nearly every single one of my DVDs and Blu-rays (I only have a handful of the latter) so that I can play them off of my Mac Mini instead of having to load the DVD player every time I want to see a different movie. On the Mac Mini 1.83 gHz C2D with 2gb of RAM and GMA950 graphics, I had no issues with the 480p videos in Front Row, but the high-def rips from the Blu-rays were very jerky, even though I downconverted them to 720p. I just upgraded to a 2.0 gHz C2D with 2gb of RAM and the nVidia 9400M graphics. Most of the 720p videos play well now, but a couple of them (Iron Man, particularly) are still a bit jerky in places. Would upgrading again to a 2.26 gHz or a 2.53 gHz Mac Mini fix this issue? Do I just need more RAM? Does anyone have any advice?