In a wide-ranging interview with Kotaku regarding the new Wii U console, one of Nintendo’s chief game designers, Katsuya Eguchi, confirmed that the system’s proprietary disc format will hold 25 Gigabytes of data. That squares with our own reporting from before E3 and puts Nintendo in a good place to run games that fill up a single-layer 25GB Blu-Ray disc, the format used by current console king of large game discs, the PlayStation 3. More