Importing Video from Digi Cam

Hi.

I took a video today on my digital camera and transfered it to my PC. It is in AVI format.
I tried import to the stage but it says it is of an unsupported format which is quite annoying, i tried putting it in movie maker and saving it as a wmv and then importing it but still unsupported.

How can I import my video?

Thank you, emdiesse