To catch a competitor: Redbox races after Netflix for your DVD dollar

{Douglas Lee, b} The biggest Netflix battle at the moment isn’t “Who put ‘Battlefield Earth’ in the queue?” More subscribers than ever are flocking to its DVD-by-mail service, yet Netflix Inc. CEO Reed Hastings still has to worry about a cheaper DVD rental service run by one of his former lieutenants. Redbox has emerged as the largest operator of DVD-rental kiosks, with more than 15,400 vending machines set up to dispense $1-per-day discs in grocery and discount stores. With Redbox in