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Sony has unveiled its new range of Bravia LCD TVs which are compatible with a number of high definition sources.

The Bravia S4000 series will be available with a maximum 40-inch screen size, which will feature the latest-generation Bravia Engine 2 signal technology, which the company claims offer "pictures with breathtaking detail and true-to-life color".

High-definition sources including Sony products like the Blu-ray disc player, the Playstation 3 and a Handycam are all compatible with the S4000 series.

Sony has struck a new deal to introduce in-game advertising into Playstation 3 games.

The computing giant has agreed that IGA Worldwide will be its official partner in selling and delivering the advertising space in future releases.

Recent research from analysts Nielsen Media Research estimates that the in-game advertising industry would be worth $1 billion by 2010.

Justin Townsend, chief executive of IGA Worldwide, said that Sony's Playstation 3 platform presented a prime opportunity to expand the industry.

Another DVD format battle could arise in China, warn industry experts.

Chinese research firm CCID Consulting has said that the development of Red-Ray high-definition DVD could lead to a battle with the growing Blu-Ray format, reports vnunet.com.

The firm says that the development of the Blu-Ray market in China is being restricted by high prices and disc shortages, with the Red-Ray format holding a potential price advantage over its more established rival.

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