Blu-ray and HD-DVD formats are competing high-definition video discs. Both require consumers to buy new players since they rely on blue lasers, compared to the red laser in traditional DVD players. Both formats provide larger storage capacity than the current generation of DVDs. Both camps have signed up major studios and hardware partners, and both hope to use game machines (Sony’s Playstation 3 and Microsoft’s Xbox) to gain critical mass. The battle “could last quite a few years,” says Wharton marketing professor Jehoshua Eliashberg.”]
Source: https://www.csoonline.com/article/2120773/blu-ray-vs–hd-dvd–knocking-each-other-out-.html