File is Unsupported Error on Quicktime

Hi,
I was at home. I wanted to watch the video clips that I have from a training. When I opened the file, an error message came across my screen.
It says that the movie cannot be played, and the file is unsupported.

The movie could not be opened.
The application attempted to use an unsupported Feature.
My first thought was, maybe my file is corrupted. So I ask for another copy of the video clip. When I try to play it again, the same error was displayed in my screen.
I removed QuickTime in the hope to solve the issue. When I am finished installing it, I tried to play my video clip again and the same error was displayed.
Please help me play my video clip.
Thanks.
