The three video
files are for the same clip. The larger the size of the file is the better quality
of the clip you will have.
However,
it will take longer to download the file.
We recommend:
Tech-Weld (687 Kb) for dial-up Internet connection,
Tech-Weld (1,860 Kb) for DSL Internet connection,
Tech-Weld
(5,616 Kb) for T1 Internet connection.