First 50GB Blu-ray Disc to Debut

Sony Pictures plans to make available the first 50GB dual-layer Blu-ray disc on Tuesday when it releases Adam Sandler's latest flick, "Click." Although Blu-ray movies have been available since June, none have employed a second layer of data, which doubles the disc's capacity.

The extra 25GB of space will be used for interactivity and extras, such as high-definition bonus features and uncompressed PCM audio. Still, only a handful of films will come with such content, which was touted as a key feature of Blu-ray. Sony will release "Black Hawk Down" and "Talladega Nights" in 50GB versions before the end of the year. 20th Century Fox and Lionsgate each plan to release one dual-layer Blu-ray movie as well.