Preheat oven to 350 degrees F (175 degrees C).
Place corned beef in a large, deep skillet. Cook over medium high heat until evenly brown. Drain, crumble and set aside.
In a large saucepan, combine orange juice, citrus juice, cranberry juice, pineapple juice and carbonated soda water; mix well. Return meat to pot, over high heat. Brown on all sides, 3 to 5 minutes per side.
Pour orange juice mixture over corned beef. Pour on corned beef, tossing to coat. Place over top of corned beef.
Bake uncovered 2 to 3 hours, stirring occasionally. (Note: Bake uncovered for 2 hours, stirring occasionally.) Serve over strata or rice.