The Wii, Xbox 360, and PlayStation 3 skirmish isn't the only format war going on in the tech world these days. There's also a tussle between Toshiba's HD-DVD and Sony's Blu-ray formats to be the high-definition-ready successor to the DVD.

　　Another shot was fired on both fronts this week, as a veritable posse of movie studios and consumer electronics companies jointly announced a summer sales promotion to drive sales of Blu-ray players. From July 1 to September 30, customers who purchase qualifying Blu-ray players--yes, the PS3 qualifies--will receive five free Blu-ray movies from a list of 21 choices.

　　The eligible free titles are listed below. Full details of the offer will be released on the format's official Web site.

　　Babel

　　Black Rain

　　Blazing Saddles

　　Chicken Little

　　The Corpse Bride

　　The Devil's Rejects

　　The Guardian

　　Hart's War

　　Invincible

　　The Italian Job

　　Kiss of the Dragon

　　The Last Waltz

　　The Omen [2006]

　　Pearl Harbor

　　The Phantom of the Opera

　　Resident Evil: Apocalypse

　　Species

　　Stealth

　　Stir of Echoes

　　The Transporter 2

　　Underworld: Evolution