Bill: Here's a great site for DVD's: Doak Ewing site
http://www.raresportsfilms.com
Here's a great one: The first 32 minutes of this DVD is the 1934 American League film "Play Ball". Commissioner Judge Landis proudly introduces the film as the first sound film ever produced by Major League Baseball! The star players of the American League are shown, often in instructional segments.
http://www.raresportsfilms.com/1934-35worldseries.html
Note: My dad is in this film, playing ball as a kid in Detroit in the 1930's. He indicated that George Moriarty was filming this segment around Detroit and saw them playing in an empty field in the neighborhood and told them to do various activities.
Also love to watch : Home Run Derby TV Series