QuickTime Player

QuickTime Player screenshots

A universal media player developed specifically for Mac OS X by Apple, Inc.
Video Playback and Options
QuickTime Player 10.0 : Video Playback and Options

Alternative downloads

Flip Player
This application lets you play videos of various formats on your Mac.
Leawo Prof. Media
All-in-one media converter combo for Mac users.
Quick Time Player
Watch Internet video, HD movie trailers, and personal media clips.