This is a Blu-Ray disc made for Blue-laser Format players which produce higher quality picture and sound.
Disney's Underdog flies home in super-powered brilliance on Blu-ray Disc. After an accident in the mysterious lab of mad scientist Dr. Simon Barsinister, an ordinary beagle finds himself with extraordinary powers... and the ability to talk! Armed with a fetching superhero costume, Underdog vows to protect the beleaguered citizens of Capital City, in particular, a beautiful spaniel named Polly Purebred. When a diabolical plot by Barsinister and his overgrown henchman Cad threatens to destroy Capital City, only Underwear... (oops!)... Underdog can save the day. See his spectacular stunts and hear every crime-stopping "crunch - pow - woosh" in the dazzling dimension of Disney Blu-ray - Magic in High Definition!