Preheat the oven to 325 degrees F.

Mix crumbs and butter; press onto bottom of 13x9-pan lined with foil. Bake 10 min.

Beat cream cheese, sugar, flour and vanilla with mixer until blended. Add chocolate; mix well.

Add eggs, 1 at a time, mixing on low after each just until blended. Pour over crust.

Bake 45 minutes or until center is almost set. Cool. Refrigerate 4 hours. Use foil to lift cheesecake from pan. Top with berries.