Get ready to never leave your home. Pioneer announced this week a read-only Blu-ray technology that could put up to 48 hours, or 400GB, of movies on a single disc. By comparison, the current Blu-ray Disc format stores 25GB on a single-layer disc and 50GB on a dual-layer version. A 50GB Blu-ray disc can hold up to about six hours of high-definition video. 16 Layers The new Pioneer ...