In order to find out if those files are supported you need to check their format, resolution, size and frame rate to confirm if they are within the below specification.
- Resolution: 320x240, QVGA
- Format: Motion-JPEG B
- Frame rate: 10fps
To do this you need to install a video transcoder application such as Quick time Pro which can be purchased from the Internet. http://www.apple.com/quicktime/download/win.html