If you think EA's bottom line is primarily driven by endless Madden sequels, think again. In reporting its fiscal first quarter results, the studio has revealed that its digital businesses -- DLC, mobile and the web -- now generate more official revenue ($482 million) than disc-based games and distribution ($467 million). The company isn't breaking down these figures, although it says that DLC and mobile are the main factors. We do know that iOS plays a crucial role -- EA says that Apple is now its largest retail partner in terms of pure sales. The revenue shift isn't completely surprising when the company is big on flagship mobile games and the free-to-play model, but it suggests that discs are losing some of their luster at one of the world's largest developers.