Summary Box: wearable 3-D personal theater

THE PRODUCT: Sony Corp. will start selling a head-mounted display that provides a 3-D theater of music videos, movies and games.

TARGET CUSTOMERS: People who prefer solitary entertainment rather than sitting in front of a TV with family or friends.

DETAILS: The HMZ personal 3-D viewer will cost about $800. It is set to go on sale Nov. 11 in Japan. Dates have not been set yet for the U.S. and Europe.