Sony won the high-definition DVD format war with Blu-ray. Now, Blu-ray is becoming more mainstream by edging into a budget-friendly Dell laptop. Dell is now offering a Blu-ray-equipped laptop — the Inspiron 1525 model — starting at $879. The 1525 features a 15.4-inch high-definition wide-aspect display with 720p resolution and an HDMI port for connectivity to HDTVs.