The good folks at Spotlight have produced a new podcast with Thom Hammond, formerly of Spotlight and now of Hammond Cox Casting, on how to prepare for commercial castings, including tips and advice on why they should be treated a bit differently from TV, film or stage castings.

http://www.spotlight.com/news/archive/2012/04/26/the-spotlight-podcast-how-to-approach-commercial-castings.aspx