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 9. The 1525 features a 15.4-inch high-definition wide-aspect display with 720p resolution and an HDMI port for connectivity to HDTVs. The Blu-ray drive is backward-compatible and will play and burn traditional DVDs and CDs, Dell said.