I believe this is a DVD that came as a bonus when I ordered supplements ( ^ω^). I'm selling it because it's been sitting around unwatched. I can't tell you the running time because it's not listed. It hasn't been opened, so there's no dirt, but there's a scratch on either the outer film or the case. Please refrain from purchasing if you are nervous, as it is stored and inspected by an amateur. Also, we do not accept returns, so please feel free to ask any questions you may have beforehand (*^^*)♪ #Joints #Prevention #Improvement #Exercise #Fitness #Self-care #Knee pain #Lower back pain #DVD