Sony has announced that three of its movie titles will be the first Sony films released on 50 GB dual-layer Blu-ray disc.

The first 50 GB Blu-ray disc will contain the full movies in high-definition format plus extra content such as deleted scenes, interviews and commentaries from the actors, uncompressed audio and more.

The three titles which will take full advantage of the new 50 GB dual-layer Blu-ray disks are “Click“, Ridley Scott’s “Black Hawk Down” and “Talladega Nights: The Ballad of Ricky Bobby“.

The Blu-ray disks were already available on the market before, but in capacities of only 25 GB. The new dual-layer technology offers the possibility to store double that size on a single, dual-layer Blu-ray disc. Controversy still exists between the two high-density optical disc formats. While Blu-ray, claims the greater advantage in disc storage capacity, rival format HD DVD has proved itself to be much cheaper and easier to manufacture.

Although the first company to announce 50 GB Blu-ray discs, Sony will not remain the only one to use them, as two other studios have announced 50 GB discs. 20th Century Fox is releasing “Kingdom of Heaven” and Lionsgate is preparing a dual-layer Blu-ray disc of “The Descent”.

The battle between the two high-density disc formats is still very tight as consumers spent $25 million on the three HD players in the market: two HD DVD players from Toshiba and one Blu-ray disc player from Samsung.

When the second Blu-ray player from Panasonic will hit the market, and more players from Philips, Sony and Pioneer expected within a month, spending should increase significantly, said Steve Nickerson, senior vice president of market management at Warner Home Video, cited by ZDNet.