The DVD of the 'Hatfields and McCoys: An American Vendetta' mini-series is available on History.com for sale. Right now, at pre-order the price is $29.99. Regular price is $45.99. It ships July 31st:
Also available for Blu-ray: http://shop.history.com/hatfields-mccoys-blu-ray/detail.php?p=372996&v=history_subject_hatfields_mccoys
And don't forget: June 2nd @ 4pm on the History Channel: America's Greatest Feud: The History of the Hatfields & McCoys - The story of the famous American feud as told by historians, scholars and descendants and narrated by Kevin Costner.
Silva Screen Records America has released a soundtrack album for the mini-series Hatfields & McCoys in MP3 format. The album features the original score from the series composed by John Debney and Tony Morales. Lisbeth Scott (Avatar, The Passion of the Christ) is featured as a vocalist on the score: