Video Software and other Media Formats

Apple uses QuickTime to play videos.  This software is built in to the Mac OS X operating system.  The "Software Update" under the Apple menu will make sure you have the latest version. 

You should not use Adobe Flash.  It has too many security problems. 

VideoLan (VLC) can play almost any form of video.  It's free.  Download here:

If you need to convert video to a differnt format, try HandBrake.  It’s free.