1. QuickTime format. This file format will play on all Mac's and PC's. Requires the free QuickTime 7 player from Apple. Player has play/pause and slider controls. Be sure to read the text files that come with the download. Download contains READ_ME text files. Please read them, as they contain important information for playing your QuickTime movie.
2. Windows Media format. This file format will play only on PC's. Requires the free Windows Media Player from MicroSoft. Player has play/pause and slider controls. This one is the easiest to integrate into Power Point presentations.
NOTE: these files will NOT give you the ability to make a conventional DVD to play on TV. Click here for details.
For more detailed description of these file types and what they are best suited for, click_here.