As posted in Dale Lolly's blog:

Tuesday, August 05, 2008
Rule changes and points of emphasis video
Just wanted to share something the league sent me today. This should help explain some rule changes and points of emphasis. This is the same video shown to the players at training camp.

http://www.nflfilmstv.com/NewMedia/0718 ... hanges.mpg
Posted by Dale Lolley at 1:29 PM