QuickTime Player

QuickTime Player screenshots

A universal media player developed specifically for Mac OS X by Apple, Inc.
Movie Inspector + Export Progress Windows
QuickTime Player 10.0 : Movie Inspector + Export Progress Windows

Alternative downloads

Flip Player
3.3.8.1
This application lets you play videos of various formats on your Mac.
HeldenViewer
1.0.2
FREE
Search, download and view Youtube videos.
Quick Time Player
FREE
Watch Internet video, HD movie trailers, and personal media clips.