Rossair,
All of the videos suggested will probably carry the standard copyright message that they are for "home use only". Therefore if you plan to use them in a commercial environment you will need to contact the company concerned for permission. They will probably ask for more money!
There was a case discussed on here a few years ago where a MCC provider was using one such video to demonstrate "bad CRM". When the captain who was shown in the video found out he was not happy, neither were the company who made the video!