It could be just a glitch, or a corrupted file, or a more complex software issue. Now you know the answer to 'Can QuickTime play AVI?' There can be multiple reasons for the AVI playback error. Part 3: What Should You Do to Play AVI in QuickTime? When some codecs are not supported on QuickTime Player, the AVI file just doesn't seem to play. The answer to 'Can QuickTime play AVI?' depends on the codecs of AVI itself.
