The third and fourth volumes of A Pup Named Scooby-Doo will arrive in stores on July 18th, says Toon Zone. Both DVDs will hold four 22-minute episodes from the series. Specifically, Volume 3 will contain “Scooby-Doo Dude,” “Ghost Who’s Coming to Dinner,” “The Story Stick” and “Robopup.” Concurrently, Volume 4 will present “Lights…Camera… Monster,” “The Curse of the Collar,” “The Return of Commander Cool,” and “The Spirit of Rock ‘n’ Roll.”