Unroll crescent dough; separate into 4 rectangles. Firmly press perforations to seal. Brush rectangles with melted butter; sprinkle each with 1 1/2 teaspoons bread crumbs. To make each roll, spoon 1/4 cup crab mixture on 1 short end of each rectangle, spreading mixture onto 1/3 of rectangle. Starting with crab-filled side, roll up, just covering crab. Spoon 1 tablespoon red pepper next to edge of crab mixture. Roll up completely; press seam to seal. (Refrigerate remaining crab mixture.) In shallow dish, stir together 1/4 cup of the bread crumbs, sesame seed and black sesame seed. Brush outsides of rolls with melted butter; roll in sesame seed mixture. Wrap each roll in plastic wrap. Refrigerate 1 hour.