After quietly heating up over recent months, the battle over next-generation DVD formats boiled over Thursday, as Dell and Hewlett-Packard assailed Intel and Microsoft, which have lined up in the opposite camp. Earlier this week, Microsoft and Intel announced that they were backing the HD-DVD format, saying its approach will spur easier home networking of movies and make it simpler to distribute hybrid discs containing both high-definition and traditional DVD movies. Dell and HP shot back Thursday, saying the world's largest software and processor makers were spreading "inaccurate" information. They also reiterated their backing for the rival Blu-ray format. "From a PC end-user perspective, Blu-ray is a superior format," HP personal-storage unit general manager Maureen Weber said in a statement. Weber said Blu-ray offers anywhere from two-thirds to 150 percent more storage capacity, as well as higher transfer rates, and fits easily into slim notebooks. "The technical merits and consumer benefits of Blu-ray Disc make it the ideal solution for HP's customers."