What are some good Muay Thai dvds?

What are some good Muay Thai dvds? I am 17 and a AM Boxer and a couple of my friends that are Karate and Kickboxing guys want me to spar with them some time.I want to learn to block kicks and clinch.Can i learn that from a DVD?|||razor rob McCullough has great cd%26#039;s even tho his fights are lackluster bombs nowadays. try title mma dvd%26#039;s with duke roufus and eric shafer those are real good too.