Mac mini and h264 1080p stutter

Hi, I tried to search on Internet but i didn't find a solution.
If I try mov h264 1080p files (the one on the quick time site for example) the stutter terrible. The same but even worse with AVCHD files.
It's this a limit of the mac mini or there something i miss to proper view this kind of files?
I tried VLC player but it's almost the same.
Thank's

Hi- Are you using one of the new Mac minis with 2.26 ghz processors? Do you have a lot going on at the same time you are trying to watch one of those videos?
If you are trying to watch one of the 1080p quicktime trailers off the net, it could be because your internet connection is slow, and not the speed of the Mini itself.
Try to download the trailers to your Mac mini first, and then try playing.
If you are getting stuttering video in 1080p with stuff that is already on your Mac mini, some users report having success by using a program called Plex to watch that HD content. It is a free download, so give it a shot.
For what it is worth, I routinely watch 1080p content on my low-end spec Mac mini with 4gb of ram, but even with 2gb, everything was smooth as silk on a 46' HDTV using VLC and Plex.

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