What do I need to download to be able to view avi files in Quicktime. I know there are other players out there, but I prefer to use Quicktime if possible.
To be clear here, the Flip4Mac plugin is for WMV files, not AVIs. QuickTime actually knows how to handle AVIs right out of the box, it just doesn't include a decoder for DivX or XviD, both of which are very popular codecs. As a result, it looks as if you can't open AVI files unless you install the DivX or 3ivx codecs: