Spray 1 sheet of phyllo with cooking spray, keeping remaining pastry covered with a slightly damp towel to prevent it from drying out. Place Brie in center of sheet; wrap phyllo around Brie. Repeat procedure 3 times, inverting Brie each time; set aside.
Layer remaining 4 sheets of phyllo pastry, spraying each with cooking spray; place wrapped Brie in center. Bring corners of phyllo to center of Brie to cover, gently gathering and pressing together in center to resemble a package. Carefully tie with kitchen string. Coat wrapped Brie with cooking spray, and place on a lightly greased baking sheet.
Bake at 375° F for 25 minutes or until golden, shielding top of pastry with aluminum foil the last 15 minutes to prevent overbrowning. Remove from oven; let stand about 20 minutes before serving. Remove string, and garnish with fresh herbs, if desired.
Serve with crackers.
Servings: 12 to 15