If you are experiencing problems playing .AVI files on a Mac go to this site for advice https://support.apple.com/en-md/HT1536
Edited by: Wyman W. Lai, Luc L. Mertens, Meryl S. Cohen, Tal Geva
If you are experiencing problems playing .AVI files on a Mac go to this site for advice https://support.apple.com/en-md/HT1536